{"items":[{"id":"NVI-00012010","kind":"vulnerability","title":"Pydantic AI Web chat UI (`Agent.to_web()`, `clai web`): the local chat endpoint does not validate the `Host` header","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q2xc-rrxj-58x9","CVE-2026-107292"],"plain_summary":"GitHub lists this reviewed advisory for pydantic-ai, pydantic-ai, pydantic-ai-slim, pydantic-ai-slim. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0978da7340a0688af1a6c79944d1ac2e"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-08T17:16:42.000Z","value":"6.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8518042512352aa8915c304b14a0c0a1"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.132%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.02763. Missing scores are unknown.","source_id":"sr-0978da7340a0688af1a6c79944d1ac2e"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8518042512352aa8915c304b14a0c0a1","url":"https://github.com/advisories/GHSA-q2xc-rrxj-58x9","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q2xc-rrxj-58x9","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:38.867Z"},{"id":"sr-0978da7340a0688af1a6c79944d1ac2e","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-107292","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.839Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 1.34.0, < 1.107.5"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 2.0.0b1, < 2.30.0"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai-slim","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 1.34.0, < 1.107.5"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai-slim","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 2.0.0b1, < 2.30.0"]}],"null_published_at":"2026-11-03T17:49:15.031Z","source_updated_at":"2026-10-08T17:16:42.000Z","source_disclosed_at":"2026-10-08T17:16:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T00:58:38.867Z"},{"id":"NVI-00012010","kind":"vulnerability","title":"Pydantic AI Web chat UI (`Agent.to_web()`, `clai web`): the local chat endpoint does not validate the `Host` header","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q2xc-rrxj-58x9","CVE-2026-107292"],"plain_summary":"GitHub lists this reviewed advisory for pydantic-ai, pydantic-ai, pydantic-ai-slim, pydantic-ai-slim. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-613c38193270bdd3a0eaeb0e7437973c"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-08T17:16:42.000Z","value":"6.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8518042512352aa8915c304b14a0c0a1"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.132%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.02766. Missing scores are unknown.","source_id":"sr-613c38193270bdd3a0eaeb0e7437973c"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8518042512352aa8915c304b14a0c0a1","url":"https://github.com/advisories/GHSA-q2xc-rrxj-58x9","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q2xc-rrxj-58x9","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:38.867Z"},{"id":"sr-613c38193270bdd3a0eaeb0e7437973c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-107292","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.065Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 1.34.0, < 1.107.5"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 2.0.0b1, < 2.30.0"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai-slim","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 1.34.0, < 1.107.5"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai-slim","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 2.0.0b1, < 2.30.0"]}],"null_published_at":"2026-11-01T22:58:19.134Z","source_updated_at":"2026-10-08T17:16:42.000Z","source_disclosed_at":"2026-10-08T17:16:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T00:58:38.867Z"},{"id":"NVI-00012010","kind":"vulnerability","title":"Pydantic AI Web chat UI (`Agent.to_web()`, `clai web`): the local chat endpoint does not validate the `Host` header","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q2xc-rrxj-58x9","CVE-2026-107292"],"plain_summary":"GitHub lists this reviewed advisory for pydantic-ai, pydantic-ai, pydantic-ai-slim, pydantic-ai-slim. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-08T17:16:42.000Z","value":"6.4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8518042512352aa8915c304b14a0c0a1"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8518042512352aa8915c304b14a0c0a1","url":"https://github.com/advisories/GHSA-q2xc-rrxj-58x9","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q2xc-rrxj-58x9","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:38.867Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 1.34.0, < 1.107.5"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 2.0.0b1, < 2.30.0"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai-slim","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 1.34.0, < 1.107.5"]},{"certainty":"source_listed","source_ids":["sr-8518042512352aa8915c304b14a0c0a1"],"technology":"pydantic-ai-slim","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Pydantic AI development web chat UI (`Agent.to_web()`, `clai web`) does not validate the `Host` header of incoming requests. A website a developer visits can use DNS rebinding to make requests to a chat UI running on that developer's machine appear same-origin to the browser, causing the served agent to run and to execute its tools with the privileges and credentials of the local process.\n\n### Details\n\nOnce a name the attacker controls resolves to the loopback address, the browser treats the request as same-origin, so neither an `Origin` check nor a CSRF token constrains it — a same-origin page can read the served UI and any token in it.\n\nBinding the web UI to localhost — the default — does not prevent this.\n\n### Impact\n\nApplications and developers serving an agent through `Agent.to_web()` or `clai web`. The consequences depend on the tools the served agent exposes, and can include data disclosure as well as unwanted tool side effects.\n\nCurrent browser protections reduce but do not remove this exposure: Chromium's Local Network Access gates loopback subresource requests, but does not cover top-level navigations, and Safari does not implement it.\n\n### Mitigation\n\nUp","public_affected_ranges":[">= 2.0.0b1, < 2.30.0"]}],"null_published_at":"2026-11-01T01:03:56.621Z","source_updated_at":"2026-10-08T17:16:42.000Z","source_disclosed_at":"2026-10-08T17:16:39.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T00:58:38.867Z"}],"next_cursor":null,"snapshot_revision":"42594"}