CVE-2026-45136 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-45136HIGH

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

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   N   N   H   H   L    8.6   .0019    8.8     —

AFFECTED
  Product                Versions             Fixed
  claude-code-cache-fix  >= 3.5.0, < 3.5.2 –  —

TIMELINE
  May 8   Reserved by GitHub_M
  May 27  EXPLOIT PUBLISHED — CVE-2026-45136 (cnighswonger claude-code-cache-fix). Public exploit reference added.
  May 27  Published (CNA: GitHub_M)

CWE-78, CWE-94 · CNA: GitHub_M · CVSS v4.0 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 8, 2026	Reserved	Reserved by GitHub_M
May 27, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-45136 (cnighswonger claude-code-cache-fix). Public exploit reference added.
May 27, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
cnighswonger	claude-code-cache-fix	—	>= 3.5.0, < 3.5.2	—

Weaknesses

CWE-78 · CWE-94

References (3)

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]

Authoritative record: CVE-2026-45136 at cve.org

Vendors: cnighswonger

Weaknesses: CWE-78 · CWE-94

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-45136 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.