{"items":[{"id":"NVI-00012011","kind":"vulnerability","title":"Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning","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-pq7j-f95f-qfcv","CVE-2026-86063"],"plain_summary":"GitHub lists this reviewed advisory for @anthropic-ai/claude-code. 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-4d7b14e3014f7b257e003be43f38c360"],"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":"2026-10-13T21:19:36.730Z","value":"7.5 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6c7789d967722840ef99eb8d1b65c1a5"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.172%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.06521. Missing scores are unknown.","source_id":"sr-4d7b14e3014f7b257e003be43f38c360"}],"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-8658e59198d40a5f5518cf1ce0629b9d","url":"https://github.com/advisories/GHSA-pq7j-f95f-qfcv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pq7j-f95f-qfcv","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"},{"id":"sr-6c7789d967722840ef99eb8d1b65c1a5","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86063","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-86063","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:21.684Z"},{"id":"sr-4d7b14e3014f7b257e003be43f38c360","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-2026-86063","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.087Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8658e59198d40a5f5518cf1ce0629b9d"],"technology":"@anthropic-ai/claude-code","known_exclusions":[],"conditions_summary":"The plugin install flow in Claude Code and Claude Desktop checked out a marketplace's pinned commit SHA using `git checkout` without verifying that the resulting HEAD matched the pinned SHA. An attacker controlling a plugin's upstream repository could create a branch named identically to the pinned 40-character SHA, causing the checkout to silently resolve to the attacker's branch tip instead of the reviewed commit, resulting in attacker-controlled code being installed bypassing the pinned hash. Exploitation required a user to install a malicious plugin, pin to a safe hash, and for the plugin source to be hosted on a git host that permitted SHA-shaped branch names.\n\nUsers on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to the latest version.\n\nThank you to Or Nevo Michrowski of Air Security for reporting this issue.","public_affected_ranges":["< 2.1.179"]}],"null_published_at":"2026-11-07T07:07:42.487Z","source_updated_at":"2026-10-15T20:22:08.000Z","source_disclosed_at":"2026-10-15T20:22:07.000Z","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-00012011","kind":"vulnerability","title":"Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pq7j-f95f-qfcv","CVE-2026-86063"],"plain_summary":"GitHub lists this reviewed advisory for @anthropic-ai/claude-code. 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-4d7b14e3014f7b257e003be43f38c360"],"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":"0.172%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.06521. Missing scores are unknown.","source_id":"sr-4d7b14e3014f7b257e003be43f38c360"}],"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-8658e59198d40a5f5518cf1ce0629b9d","url":"https://github.com/advisories/GHSA-pq7j-f95f-qfcv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pq7j-f95f-qfcv","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"},{"id":"sr-4d7b14e3014f7b257e003be43f38c360","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-2026-86063","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.087Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8658e59198d40a5f5518cf1ce0629b9d"],"technology":"@anthropic-ai/claude-code","known_exclusions":[],"conditions_summary":"The plugin install flow in Claude Code and Claude Desktop checked out a marketplace's pinned commit SHA using `git checkout` without verifying that the resulting HEAD matched the pinned SHA. An attacker controlling a plugin's upstream repository could create a branch named identically to the pinned 40-character SHA, causing the checkout to silently resolve to the attacker's branch tip instead of the reviewed commit, resulting in attacker-controlled code being installed bypassing the pinned hash. Exploitation required a user to install a malicious plugin, pin to a safe hash, and for the plugin source to be hosted on a git host that permitted SHA-shaped branch names.\n\nUsers on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to the latest version.\n\nThank you to Or Nevo Michrowski of Air Security for reporting this issue.","public_affected_ranges":["< 2.1.179"]}],"null_published_at":"2026-11-01T22:58:19.125Z","source_updated_at":"2026-10-15T20:22:08.000Z","source_disclosed_at":"2026-10-15T20:22:07.000Z","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-00012011","kind":"vulnerability","title":"Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pq7j-f95f-qfcv","CVE-2026-86063"],"plain_summary":"GitHub lists this reviewed advisory for @anthropic-ai/claude-code. 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-8658e59198d40a5f5518cf1ce0629b9d"],"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-8658e59198d40a5f5518cf1ce0629b9d","url":"https://github.com/advisories/GHSA-pq7j-f95f-qfcv","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pq7j-f95f-qfcv","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:14:14.588Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8658e59198d40a5f5518cf1ce0629b9d"],"technology":"@anthropic-ai/claude-code","known_exclusions":[],"conditions_summary":"The plugin install flow in Claude Code and Claude Desktop checked out a marketplace's pinned commit SHA using `git checkout` without verifying that the resulting HEAD matched the pinned SHA. An attacker controlling a plugin's upstream repository could create a branch named identically to the pinned 40-character SHA, causing the checkout to silently resolve to the attacker's branch tip instead of the reviewed commit, resulting in attacker-controlled code being installed bypassing the pinned hash. Exploitation required a user to install a malicious plugin, pin to a safe hash, and for the plugin source to be hosted on a git host that permitted SHA-shaped branch names.\n\nUsers on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to the latest version.\n\nThank you to Or Nevo Michrowski of Air Security for reporting this issue.","public_affected_ranges":["< 2.1.179"]}],"null_published_at":"2026-11-01T01:03:56.621Z","source_updated_at":"2026-10-15T20:22:08.000Z","source_disclosed_at":"2026-10-15T20:22:07.000Z","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":"40769"}