CVE-2026-45136: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in cnighswonger claude-code-cache-fix
claude-code-cache-fix is a cache optimization proxy for Claude Code. From 3.5.0 to before 3.5.2, tools/quota-statusline.sh (introduced in v3.5.0) interpolates Claude Code's hook stdin payload directly into a Python triple-quoted string literal. A ''' byte sequence in any user-controlled field of the payload closes the literal early and lets following bytes execute as Python in the user's Claude Code process. This vulnerability is fixed in 3.5.2.
CVE-2026-45136: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in cnighswonger claude-code-cache-fix
Description
claude-code-cache-fix is a cache optimization proxy for Claude Code. From 3.5.0 to before 3.5.2, tools/quota-statusline.sh (introduced in v3.5.0) interpolates Claude Code's hook stdin payload directly into a Python triple-quoted string literal. A ''' byte sequence in any user-controlled field of the payload closes the literal early and lets following bytes execute as Python in the user's Claude Code process. This vulnerability is fixed in 3.5.2.
CVSS v4.0
Score 8.6high
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-08T20:08:17.210Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a175c27e29bf47b50eb6095
Added to database: 5/27/2026, 9:03:35 PM
Last updated: 5/27/2026, 9:04:08 PM
Views: 1
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