CVE-2026-45136

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 v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cnighswonger/claude-code-cache-fix/issues/108	Exploit Issue Tracking
https://github.com/cnighswonger/claude-code-cache-fix/pull/110	Issue Tracking Patch
https://github.com/cnighswonger/claude-code-cache-fix/security/advisories/GHSA-g3xq-3gmv-qq8g	Mitigation Vendor Advisory
https://github.com/cnighswonger/claude-code-cache-fix/issues/108	Exploit Issue Tracking
https://github.com/cnighswonger/claude-code-cache-fix/security/advisories/GHSA-g3xq-3gmv-qq8g	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cnighswonger:claude-code-cache-fix:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-27 21:16

Updated : 2026-06-17 10:51

NVD link : CVE-2026-45136

Mitre link : CVE-2026-45136

CVE.ORG link : CVE-2026-45136

JSON object : View

Products Affected

cnighswonger

claude-code-cache-fix

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-94

Improper Control of Generation of Code ('Code Injection')

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