{"items":[{"id":"NVI-00013805","kind":"vulnerability","title":"AsyncHttpClient stores cookie for an unrelated domain (cookie tossing) via ThreadSafeCookieStore","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-m452-q8c9-rg2f","CVE-2026-55688"],"plain_summary":"GitHub lists this reviewed advisory for org.asynchttpclient:async-http-client, org.asynchttpclient:async-http-client. 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-048049a9aee693b3808dbdb977492515"],"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":"2026-08-26T14:35:53.000Z","value":"4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-07e6681000529dd77e1271287cf743c9"},{"kind":"CVSS","as_of":"2026-10-25T16:10:00.147Z","value":"4 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-0d5dfb5720d28d870e5b63f6df8eb05e"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.330%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.2618. Missing scores are unknown.","source_id":"sr-048049a9aee693b3808dbdb977492515"}],"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-07e6681000529dd77e1271287cf743c9","url":"https://github.com/advisories/GHSA-m452-q8c9-rg2f","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m452-q8c9-rg2f","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"},{"id":"sr-0d5dfb5720d28d870e5b63f6df8eb05e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55688","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55688","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:33.286Z"},{"id":"sr-048049a9aee693b3808dbdb977492515","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-2026-55688","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.858Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-07e6681000529dd77e1271287cf743c9"],"technology":"org.asynchttpclient:async-http-client","known_exclusions":[],"conditions_summary":"### Impact\n A **cookie tossing / cookie injection** issue (CWE-1275). `ThreadSafeCookieStore` stored a cookie under the value of its `Domain` attribute without verifying that the responding host is allowed to set a cookie for that domain (RFC 6265 §5.3 step 6). A host the client connects to can therefore plant a cookie scoped to an unrelated domain, and the client will then send that cookie on later requests to that domain.\n\n### Who is Impacted\nApplications that use a single `AsyncHttpClient` instance - and thus the default, shared `CookieStore` - to reach **both** an attacker-influenced host and a trusted host. Typical exposure: crawlers, link-preview / webhook fetchers, SSRF-style \"fetch this URL\" features, multi-backend aggregators, or following redirects to an attacker-controlled host. The attacker can *write* a cookie the client presents to the victim host (session fixation, overwriting a session id / CSRF-token cookie); they cannot *read* the victim host's cookies. Applications that talk only to a fixed trusted backend, or that disable/scope the cookie store, are not exposed.\n\n### Patches\nFixed in 3.0.11 and 2.16.0\n\n### Workarounds\n- Disable the cookie store (setCookieStore(n","public_affected_ranges":[">= 3.0.0.Beta1, < 3.0.11"]},{"certainty":"source_listed","source_ids":["sr-07e6681000529dd77e1271287cf743c9"],"technology":"org.asynchttpclient:async-http-client","known_exclusions":[],"conditions_summary":"### Impact\n A **cookie tossing / cookie injection** issue (CWE-1275). `ThreadSafeCookieStore` stored a cookie under the value of its `Domain` attribute without verifying that the responding host is allowed to set a cookie for that domain (RFC 6265 §5.3 step 6). A host the client connects to can therefore plant a cookie scoped to an unrelated domain, and the client will then send that cookie on later requests to that domain.\n\n### Who is Impacted\nApplications that use a single `AsyncHttpClient` instance - and thus the default, shared `CookieStore` - to reach **both** an attacker-influenced host and a trusted host. Typical exposure: crawlers, link-preview / webhook fetchers, SSRF-style \"fetch this URL\" features, multi-backend aggregators, or following redirects to an attacker-controlled host. The attacker can *write* a cookie the client presents to the victim host (session fixation, overwriting a session id / CSRF-token cookie); they cannot *read* the victim host's cookies. Applications that talk only to a fixed trusted backend, or that disable/scope the cookie store, are not exposed.\n\n### Patches\nFixed in 3.0.11 and 2.16.0\n\n### Workarounds\n- Disable the cookie store (setCookieStore(n","public_affected_ranges":[">= 2.0.0, < 2.16.0"]}],"null_published_at":"2026-11-08T19:53:44.024Z","source_updated_at":"2026-08-26T14:35:53.000Z","source_disclosed_at":"2026-08-26T14:35:52.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-02T09:56:37.775Z"},{"id":"NVI-00013805","kind":"vulnerability","title":"AsyncHttpClient stores cookie for an unrelated domain (cookie tossing) via ThreadSafeCookieStore","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m452-q8c9-rg2f","CVE-2026-55688"],"plain_summary":"GitHub lists this reviewed advisory for org.asynchttpclient:async-http-client, org.asynchttpclient:async-http-client. 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-048049a9aee693b3808dbdb977492515"],"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":"2026-08-26T14:35:53.000Z","value":"4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-07e6681000529dd77e1271287cf743c9"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.330%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.2618. Missing scores are unknown.","source_id":"sr-048049a9aee693b3808dbdb977492515"}],"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-07e6681000529dd77e1271287cf743c9","url":"https://github.com/advisories/GHSA-m452-q8c9-rg2f","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m452-q8c9-rg2f","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"},{"id":"sr-048049a9aee693b3808dbdb977492515","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-2026-55688","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.858Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-07e6681000529dd77e1271287cf743c9"],"technology":"org.asynchttpclient:async-http-client","known_exclusions":[],"conditions_summary":"### Impact\n A **cookie tossing / cookie injection** issue (CWE-1275). `ThreadSafeCookieStore` stored a cookie under the value of its `Domain` attribute without verifying that the responding host is allowed to set a cookie for that domain (RFC 6265 §5.3 step 6). A host the client connects to can therefore plant a cookie scoped to an unrelated domain, and the client will then send that cookie on later requests to that domain.\n\n### Who is Impacted\nApplications that use a single `AsyncHttpClient` instance - and thus the default, shared `CookieStore` - to reach **both** an attacker-influenced host and a trusted host. Typical exposure: crawlers, link-preview / webhook fetchers, SSRF-style \"fetch this URL\" features, multi-backend aggregators, or following redirects to an attacker-controlled host. The attacker can *write* a cookie the client presents to the victim host (session fixation, overwriting a session id / CSRF-token cookie); they cannot *read* the victim host's cookies. Applications that talk only to a fixed trusted backend, or that disable/scope the cookie store, are not exposed.\n\n### Patches\nFixed in 3.0.11 and 2.16.0\n\n### Workarounds\n- Disable the cookie store (setCookieStore(n","public_affected_ranges":[">= 3.0.0.Beta1, < 3.0.11"]},{"certainty":"source_listed","source_ids":["sr-07e6681000529dd77e1271287cf743c9"],"technology":"org.asynchttpclient:async-http-client","known_exclusions":[],"conditions_summary":"### Impact\n A **cookie tossing / cookie injection** issue (CWE-1275). `ThreadSafeCookieStore` stored a cookie under the value of its `Domain` attribute without verifying that the responding host is allowed to set a cookie for that domain (RFC 6265 §5.3 step 6). A host the client connects to can therefore plant a cookie scoped to an unrelated domain, and the client will then send that cookie on later requests to that domain.\n\n### Who is Impacted\nApplications that use a single `AsyncHttpClient` instance - and thus the default, shared `CookieStore` - to reach **both** an attacker-influenced host and a trusted host. Typical exposure: crawlers, link-preview / webhook fetchers, SSRF-style \"fetch this URL\" features, multi-backend aggregators, or following redirects to an attacker-controlled host. The attacker can *write* a cookie the client presents to the victim host (session fixation, overwriting a session id / CSRF-token cookie); they cannot *read* the victim host's cookies. Applications that talk only to a fixed trusted backend, or that disable/scope the cookie store, are not exposed.\n\n### Patches\nFixed in 3.0.11 and 2.16.0\n\n### Workarounds\n- Disable the cookie store (setCookieStore(n","public_affected_ranges":[">= 2.0.0, < 2.16.0"]}],"null_published_at":"2026-11-03T17:49:15.000Z","source_updated_at":"2026-08-26T14:35:53.000Z","source_disclosed_at":"2026-08-26T14:35:52.000Z","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":"2026-11-02T09:56:37.775Z"},{"id":"NVI-00013805","kind":"vulnerability","title":"AsyncHttpClient stores cookie for an unrelated domain (cookie tossing) via ThreadSafeCookieStore","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m452-q8c9-rg2f","CVE-2026-55688"],"plain_summary":"GitHub lists this reviewed advisory for org.asynchttpclient:async-http-client, org.asynchttpclient:async-http-client. 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-07e6681000529dd77e1271287cf743c9"],"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":"2026-08-26T14:35:53.000Z","value":"4 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-07e6681000529dd77e1271287cf743c9"}],"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-07e6681000529dd77e1271287cf743c9","url":"https://github.com/advisories/GHSA-m452-q8c9-rg2f","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m452-q8c9-rg2f","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-07e6681000529dd77e1271287cf743c9"],"technology":"org.asynchttpclient:async-http-client","known_exclusions":[],"conditions_summary":"### Impact\n A **cookie tossing / cookie injection** issue (CWE-1275). `ThreadSafeCookieStore` stored a cookie under the value of its `Domain` attribute without verifying that the responding host is allowed to set a cookie for that domain (RFC 6265 §5.3 step 6). A host the client connects to can therefore plant a cookie scoped to an unrelated domain, and the client will then send that cookie on later requests to that domain.\n\n### Who is Impacted\nApplications that use a single `AsyncHttpClient` instance - and thus the default, shared `CookieStore` - to reach **both** an attacker-influenced host and a trusted host. Typical exposure: crawlers, link-preview / webhook fetchers, SSRF-style \"fetch this URL\" features, multi-backend aggregators, or following redirects to an attacker-controlled host. The attacker can *write* a cookie the client presents to the victim host (session fixation, overwriting a session id / CSRF-token cookie); they cannot *read* the victim host's cookies. Applications that talk only to a fixed trusted backend, or that disable/scope the cookie store, are not exposed.\n\n### Patches\nFixed in 3.0.11 and 2.16.0\n\n### Workarounds\n- Disable the cookie store (setCookieStore(n","public_affected_ranges":[">= 3.0.0.Beta1, < 3.0.11"]},{"certainty":"source_listed","source_ids":["sr-07e6681000529dd77e1271287cf743c9"],"technology":"org.asynchttpclient:async-http-client","known_exclusions":[],"conditions_summary":"### Impact\n A **cookie tossing / cookie injection** issue (CWE-1275). `ThreadSafeCookieStore` stored a cookie under the value of its `Domain` attribute without verifying that the responding host is allowed to set a cookie for that domain (RFC 6265 §5.3 step 6). A host the client connects to can therefore plant a cookie scoped to an unrelated domain, and the client will then send that cookie on later requests to that domain.\n\n### Who is Impacted\nApplications that use a single `AsyncHttpClient` instance - and thus the default, shared `CookieStore` - to reach **both** an attacker-influenced host and a trusted host. Typical exposure: crawlers, link-preview / webhook fetchers, SSRF-style \"fetch this URL\" features, multi-backend aggregators, or following redirects to an attacker-controlled host. The attacker can *write* a cookie the client presents to the victim host (session fixation, overwriting a session id / CSRF-token cookie); they cannot *read* the victim host's cookies. Applications that talk only to a fixed trusted backend, or that disable/scope the cookie store, are not exposed.\n\n### Patches\nFixed in 3.0.11 and 2.16.0\n\n### Workarounds\n- Disable the cookie store (setCookieStore(n","public_affected_ranges":[">= 2.0.0, < 2.16.0"]}],"null_published_at":"2026-11-02T10:00:37.153Z","source_updated_at":"2026-08-26T14:35:53.000Z","source_disclosed_at":"2026-08-26T14:35:52.000Z","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":"2026-11-02T09:56:37.775Z"}],"next_cursor":null,"snapshot_revision":"42594"}