CVE-2026-45136

7.8 HIGH
Published: May 27, 2026 Modified: June 02, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/cnighswonger/claude-code-cache-fix/issues/108
Source: security-advisories@github.com
Exploit Issue Tracking
https://github.com/cnighswonger/claude-code-cache-fix/pull/110
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/cnighswonger/claude-code-cache-fix/security/advisories/GHSA-g3xq-3gmv-qq8g
Source: security-advisories@github.com
Mitigation Vendor Advisory
https://github.com/cnighswonger/claude-code-cache-fix/issues/108
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Issue Tracking
https://github.com/cnighswonger/claude-code-cache-fix/security/advisories/GHSA-g3xq-3gmv-qq8g
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mitigation Vendor Advisory

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.0%
5th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

cnighswonger