CVE-2026-86063
HIGH
7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
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.
494
Download of Code Without Integrity Check
DraftCommon Consequences
Security Scopes Affected:
Integrity
Availability
Confidentiality
Other
Potential Impacts:
Execute Unauthorized Code Or Commands
Alter Execution Logic
Other
Applicable Platforms
All platforms may be affected
829
Inclusion of Functionality from Untrusted Control Sphere
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
https://github.com/anthropics/claude-code/releases/tag/v2.1.179
https://github.com/anthropics/claude-code/security/advisories/GHSA-pq7j-f95f-qf…