{"items":[{"id":"NVI-00011965","kind":"vulnerability","title":"Claude Agent SDK: Argument Injection via resume Option Allows Arbitrary Command Execution","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-h4mw-j7qp-8mwm","CVE-2026-96620"],"plain_summary":"GitHub lists this reviewed advisory for claude-agent-sdk. 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-34f4b3004874c0c7a9c390aa20582662"],"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":"2026-10-21T22:16:50.597Z","value":"9.2 CRITICAL (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-669f40c82e78751429710449e78511a8"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.705%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.53382. Missing scores are unknown.","source_id":"sr-34f4b3004874c0c7a9c390aa20582662"}],"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-71dd583642a38629c62996fe3b4d7e9b","url":"https://github.com/advisories/GHSA-h4mw-j7qp-8mwm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h4mw-j7qp-8mwm","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"},{"id":"sr-669f40c82e78751429710449e78511a8","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96620","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-96620","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:59.040Z"},{"id":"sr-34f4b3004874c0c7a9c390aa20582662","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-2026-96620","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.090Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-71dd583642a38629c62996fe3b4d7e9b"],"technology":"claude-agent-sdk","known_exclusions":[],"conditions_summary":"The Claude Agent SDK for Python passed the `resume` option to the Claude CLI without validation, allowing a value beginning with `-` to be interpreted as a separate CLI flag. An attacker who controlled the `resume` value could inject an `--mcp-config` flag defining a stdio MCP server, resulting in arbitrary command execution at CLI startup that bypassed the SDK's permission controls. Exploitation required an application to pass untrusted input as the session ID to resume.\n\nUsers are advised to update to the latest version of the claude-agent-sdk package.\n\nThank you to hackerone.com/moamenmahmood for reporting this issue.","public_affected_ranges":["< 0.2.121"]}],"null_published_at":"2026-11-07T07:07:42.480Z","source_updated_at":"2026-10-16T19:44:38.000Z","source_disclosed_at":"2026-10-16T19:44:37.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T23:14:14.588Z"},{"id":"NVI-00011965","kind":"vulnerability","title":"Claude Agent SDK: Argument Injection via resume Option Allows Arbitrary Command Execution","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-h4mw-j7qp-8mwm","CVE-2026-96620"],"plain_summary":"GitHub lists this reviewed advisory for claude-agent-sdk. 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-34f4b3004874c0c7a9c390aa20582662"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.705%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.53382. Missing scores are unknown.","source_id":"sr-34f4b3004874c0c7a9c390aa20582662"}],"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-71dd583642a38629c62996fe3b4d7e9b","url":"https://github.com/advisories/GHSA-h4mw-j7qp-8mwm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h4mw-j7qp-8mwm","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"},{"id":"sr-34f4b3004874c0c7a9c390aa20582662","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-2026-96620","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.090Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-71dd583642a38629c62996fe3b4d7e9b"],"technology":"claude-agent-sdk","known_exclusions":[],"conditions_summary":"The Claude Agent SDK for Python passed the `resume` option to the Claude CLI without validation, allowing a value beginning with `-` to be interpreted as a separate CLI flag. An attacker who controlled the `resume` value could inject an `--mcp-config` flag defining a stdio MCP server, resulting in arbitrary command execution at CLI startup that bypassed the SDK's permission controls. Exploitation required an application to pass untrusted input as the session ID to resume.\n\nUsers are advised to update to the latest version of the claude-agent-sdk package.\n\nThank you to hackerone.com/moamenmahmood for reporting this issue.","public_affected_ranges":["< 0.2.121"]}],"null_published_at":"2026-11-01T14:34:14.119Z","source_updated_at":"2026-10-16T19:44:38.000Z","source_disclosed_at":"2026-10-16T19:44:37.000Z","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":"2026-10-31T23:14:14.588Z"},{"id":"NVI-00011965","kind":"vulnerability","title":"Claude Agent SDK: Argument Injection via resume Option Allows Arbitrary Command Execution","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-h4mw-j7qp-8mwm","CVE-2026-96620"],"plain_summary":"GitHub lists this reviewed advisory for claude-agent-sdk. 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-71dd583642a38629c62996fe3b4d7e9b"],"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":[],"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-71dd583642a38629c62996fe3b4d7e9b","url":"https://github.com/advisories/GHSA-h4mw-j7qp-8mwm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-h4mw-j7qp-8mwm","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-71dd583642a38629c62996fe3b4d7e9b"],"technology":"claude-agent-sdk","known_exclusions":[],"conditions_summary":"The Claude Agent SDK for Python passed the `resume` option to the Claude CLI without validation, allowing a value beginning with `-` to be interpreted as a separate CLI flag. An attacker who controlled the `resume` value could inject an `--mcp-config` flag defining a stdio MCP server, resulting in arbitrary command execution at CLI startup that bypassed the SDK's permission controls. Exploitation required an application to pass untrusted input as the session ID to resume.\n\nUsers are advised to update to the latest version of the claude-agent-sdk package.\n\nThank you to hackerone.com/moamenmahmood for reporting this issue.","public_affected_ranges":["< 0.2.121"]}],"null_published_at":"2026-11-01T01:03:56.618Z","source_updated_at":"2026-10-16T19:44:38.000Z","source_disclosed_at":"2026-10-16T19:44:37.000Z","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":"2026-10-31T23:14:14.588Z"}],"next_cursor":null,"snapshot_revision":"42594"}