{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86063", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-04T19:34:03.099Z", "datePublished": "2026-10-13T19:04:11.695Z", "dateUpdated": "2026-10-13T20:21:00.156Z"}, "containers": {"cna": {"title": "Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning", "problemTypes": [{"descriptions": [{"cweId": "CWE-494", "lang": "en", "description": "CWE-494: Download of Code Without Integrity Check", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-829", "lang": "en", "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/anthropics/claude-code/security/advisories/GHSA-pq7j-f95f-qfcv", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/anthropics/claude-code/security/advisories/GHSA-pq7j-f95f-qfcv"}, {"name": "https://github.com/anthropics/claude-code/releases/tag/v2.1.179", "tags": ["x_refsource_MISC"], "url": "https://github.com/anthropics/claude-code/releases/tag/v2.1.179"}], "affected": [{"vendor": "anthropics", "product": "claude-code", "versions": [{"version": "< 2.1.179", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-13T19:04:11.695Z"}, "descriptions": [{"lang": "en", "value": "Claude Code is an agentic coding tool. Prior to 2.1.179, the Claude Code and Claude Desktop plugin installation flow runs git checkout for a marketplace-pinned commit without verifying that the resulting HEAD equals the pinned 40-character SHA. An attacker who controls a plugin repository on a Git host that permits SHA-shaped branch names can create a branch named after the reviewed commit, causing checkout to select the branch tip and install attacker-controlled plugin code. Exploitation requires a user to install the malicious plugin and pin it to the ostensibly safe hash. This issue is fixed in version 2.1.179."}], "source": {"advisory": "GHSA-pq7j-f95f-qfcv", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-13T20:14:06.546364Z", "id": "CVE-2026-86063", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-13T20:21:00.156Z"}}]}}

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{"bugzilla": {"description": "claude-code: Claude Code: arbitrary code execution via unverified commit hash during plugin installation", "id": "2551595", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2551595"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-494", "details": ["A flaw was found in Claude Code. When installing a plugin pinned to a specific commit hash, the application does not verify that the checked-out version matches the expected Secure Hash Algorithm (SHA) identifier. A remote attacker controlling a repository can create a branch named after the reviewed commit hash, tricking the tool into installing attacker-controlled code instead of the approved version. If a user installs the plugin, this issue can lead to arbitrary code execution."], "name": "CVE-2026-86063", "package_state": [{"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "package_name": "devspaces/pluginregistry-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}], "public_date": "2026-10-13T19:04:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-86063\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-86063\nhttps://github.com/anthropics/claude-code/releases/tag/v2.1.179\nhttps://github.com/anthropics/claude-code/security/advisories/GHSA-pq7j-f95f-qfcv"], "threat_severity": "Important"}

{"created": "2026-10-14T08:45:18.726395+00:00", "updated": "2026-10-14T08:45:18.726408+00:00", "vendors": []}