Is CVE-2025-59828 actively exploited?

No active exploitation of CVE-2025-59828 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-59828 be exploited remotely?

Yes. CVE-2025-59828 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-59828?

CVE-2025-59828 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2025-59828

CWE-829Published: September 24, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2025-59828 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.