Medium severity · published Oct 3, 2025
CVE-2025-59829
Claude Code: Permission deny bypass is possible through symlink
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Claude Code is an agentic coding tool. Versions below 1.0.120 failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to a file and Claude Code had access to a symlink pointing to that file, it was possible for Claude Code to access the file. 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. This issue is fixed in version 1.0.120.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CL
claude-code · anthropics
< 1.0.120 · source: vendor
CC
Claude Code · Anthropic
before 1.0.120 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59829
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59829
Vendor Advisory
https://github.com/anthropics/claude-code/security/advisories/GHSA-66m2-gx93-v996
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