High severityNVD Advisory· Published Nov 19, 2025· Updated Nov 20, 2025
Claude Code vulnerable to command execution prior to startup trust dialog
CVE-2025-65099
Description
Claude Code is an agentic coding tool. Prior to version 1.0.39, when running on a machine with Yarn 3.0 or above, Claude Code could have been tricked to execute code contained in a project via yarn plugins before the user accepted the startup trust dialog. Exploiting this would have required a user to start Claude Code in an untrusted directory and to be using Yarn 3.0 or above. This issue has been patched in version 1.0.39.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@anthropic-ai/claude-codenpm | < 1.0.39 | 1.0.39 |
Affected products
1- Range: < 1.0.39
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- github.com/advisories/GHSA-5hhx-v7f6-x7gvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-65099ghsaADVISORY
- github.com/anthropics/claude-code/security/advisories/GHSA-5hhx-v7f6-x7gvghsax_refsource_CONFIRMWEB
News mentions
0No linked articles in our index yet.