PT-2026-6765 · Anthropic · Claude-Code

Ofirh · Published 2026-02-06 · Updated 2026-05-21 · CVE-2026-25724

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Claude Code versions prior to 2.1.7

Description Claude Code, an agentic coding tool, did not properly enforce deny rules defined in the settings.json file when handling symbolic links. Specifically, if access to a file (like /etc/passwd) was explicitly denied, but Claude Code had access to a symbolic link pointing to that file, the restricted file could be read through the symlink, bypassing the deny rule enforcement.

Recommendations Update to version 2.1.7 or later.

Exploit

Fix

Improper Authorization

Weakness Enumeration

CWE-285

CWE-61

Related Identifiers

CVE-2026-25724

GHSA-4Q92-RFM6-2CQX

Affected Products

Claude-Code

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25724.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-25724 · Security Note
• https://osv.dev/vulnerability/CVE-2026-25724 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-4q92-rfm6-2cqx · Vendor Advisory
• https://github.com/anthropics/claude-code · Note
• https://github.com/anthropics/claude-code/security/advisories/GHSA-4q92-rfm6-2cqx · Note
• https://twitter.com/_cvereports/status/2020341843376971867 · Twitter Post
• https://twitter.com/musiol_martin/status/2057396732418289876 · Twitter Post
• https://t.me/cveNotify/151409 · Telegram Post
• https://reddit.com/r/cybersecurity/comments/1rkp8uw/just_saw_symlink_permission_bypass_in_claude_code · Reddit Post
• https://terra.security/blog/when-ai-becomes-the-attack-surface-lessons-from-discovering-cve-2026-25724 · Note
• https://twitter.com/CVEnew/status/2019847330296373444 · Twitter Post