PT-2025-40539 · Anthropic · Claude-Code

Vinai · Published 2025-10-03 · Updated 2025-10-24 · CVE-2025-59829

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Claude Code versions prior to 1.0.120

Description An issue existed where Claude Code did not properly handle symlinks when enforcing permission deny rules. Specifically, if a user blocked Claude Code’s access to a file, but Claude Code had access to a symlink pointing to that file, Claude Code could still access the restricted file. This occurred because the system failed to account for symlinks when evaluating permission restrictions.

Recommendations Update to version 1.0.120 or later.

Exploit

Fix

Weakness Enumeration

CWE-61

Related Identifiers

CVE-2025-59829

GHSA-66M2-GX93-V996

Affected Products

Claude-Code

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59829.json · Exploit
• https://github.com/anthropics/claude-code/security/advisories/GHSA-66m2-gx93-v996 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-59829 · Security Note
• https://osv.dev/vulnerability/CVE-2025-59829 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-66m2-gx93-v996 · Vendor Advisory
• https://github.com/anthropics/claude-code · Note
• https://t.me/CVEtracker/34056 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1974351719514493152 · Twitter Post
• https://t.me/cveNotify/140277 · Telegram Post
• https://twitter.com/pHo9UBenaA/status/1974253992747086234 · Twitter Post
• https://twitter.com/CVEnew/status/1974211285962109075 · Twitter Post