CVE-2025-59828

moderate-risk

Published 2025-09-24

Claude Code is an agentic coding tool. Prior to Claude Code version 1.0.39, when using Claude Code with Yarn versions 2.0+, Yarn plugins are auto-executed when running yarn --version. This could lead to a bypass of the directory trust dialog in Claude Code, as plugins would be executed prior to the user accepting the risks of working in an untrusted directory. Users running Yarn Classic were unaffected by this issue. This issue has been fixed in version 1.0.39. Users on standard Claude Code auto-update will have received this fix automatically. Users performing manual updates are advised to update to the latest version.

Do I need to act?

0.07% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (1)

Claude Code

Affected Vendors

Anthropic

References (1)

Third Party Advisory https://github.com/anthropics/claude-code/security/advisories/GHSA-2jjv-qf24-vfm...

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal