PT-2026-6850 · Npm · @Anthropic-Ai/Claude-Code

Published 2026-02-06 · Updated 2026-02-06

OSV

CVSS v4.0

2.3

Low

Base vector

AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Claude Code failed to strictly enforce deny rules configured in settings.json when accessing files through symbolic links. If a user explicitly denied Claude Code access to a file (such as /etc/passwd) and Claude Code had access to a symbolic link pointing to that file, it was possible for Claude Code to read the restricted file through the symlink without triggering deny rule enforcement.

Users on standard Claude Code auto-update received this fix automatically. Users performing manual updates are advised to update to the latest version.

Claude Code thanks https://hackerone.com/ofirh for reporting this issue.

Fix

Improper Authorization

Weakness Enumeration

CWE-285

CWE-61

Related Identifiers

GHSA-4Q92-RFM6-2CQX

Affected Products

@Anthropic-Ai/Claude-Code

References · 5

• https://osv.dev/vulnerability/GHSA-4q92-rfm6-2cqx · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-25724 · Security Note
• https://github.com/anthropics/claude-code · Note
• https://github.com/anthropics/claude-code/security/advisories/GHSA-4q92-rfm6-2cqx · Note
• https://terra.security/blog/when-ai-becomes-the-attack-surface-lessons-from-discovering-cve-2026-25724 · Note