CVE-2026-45136

claude-code-cache-fix: Local code execution via Python triple-quote injection in tools/quota-statusline.sh

HIGH
7.8
CVSS Score
Published: May 27, 2026 at 08:48 PM UTC
Updated: June 17, 2026 at 10:51 AM UTC
1 product affected across 1 vendorClaude Code Cache Fix

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.5.23.5.0 ≤ v < 3.5.2
Affected range stops below 3.5.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_MISCExploitIssue Tracking
Source: cverecord
https://github.com/cnighswonger/claude-code-cache-fix/issues/108
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/cnighswonger/claude-code-cache-fix/pull/110

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78CWE-94

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