CVE-2026-86063

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/anthropics/claude-code/releases/tag/v2.1.179
https://github.com/anthropics/claude-code/security/advisories/GHSA-pq7j-f95f-qfcv

Configurations

No configuration.

History

13 Oct 2026, 19:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 19:21

Updated : 2026-10-13 21:19

NVD link : CVE-2026-86063

Mitre link : CVE-2026-86063

CVE.ORG link : CVE-2026-86063

JSON object : View

Products Affected

No product.

CWE

CWE-494

Download of Code Without Integrity Check

CWE-829

Inclusion of Functionality from Untrusted Control Sphere

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