CVE-2026-45136

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 91% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
EG Score
7.8(medium)
EPSS
8.6%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 2, 2026

Advisory Details (3)

Auto-updated Jun 2, 2026
Patch available. Sources: github_pr, github.
github Patch Available

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

https://github.com/cnighswonger/claude-code-cache-fix/security/advisories/GHSA-g3xq-3gmv-qq8g
github_pr Patch Available

fix: shell injection in tools/quota-statusline.sh (security #108, v3.5.2)

Patch available: cnighswonger/claude-code-cache-fix v3.5.2 (PR #110 merged 2026-05-07)

https://github.com/cnighswonger/claude-code-cache-fix/pull/110
generic

Code execution in tools/quota-statusline.sh via interpolation of hook stdin into Python source · Issue #108 · cnighswonger/claude-code-cache-fix · GitHub

https://github.com/cnighswonger/claude-code-cache-fix/issues/108

Vendor Advisories for CVE-2026-45136(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
claude-code-cache-fix—3.5.2—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 52× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
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  3. 2026-07-13 22:30 UTCEPSS rescore
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  6. 2026-07-11 22:42 UTCEG score recompute
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  1. 2026-06-28 14:07 UTCEPSS rescore
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  5. 2026-06-27 18:40 UTCEG score recompute
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  8. 2026-06-26 16:57 UTCEG score recompute
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  10. 2026-06-25 13:49 UTCEPSS rescore
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  26. 2026-06-16 17:52 UTCEPSS rescore
  27. 2026-06-16 15:51 UTCEG score recompute
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  30. 2026-06-15 13:17 UTCEG score recompute
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  45. 2026-06-10 03:45 UTCEG score recompute
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  48. 2026-06-08 14:17 UTCEPSS rescore
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  69. 2026-06-03 04:42 UTCEG score recompute▼ 0.80
  70. 2026-06-02 20:13 UTCEPSS rescore
  71. 2026-06-02 15:51 UTCEG score recompute
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  73. 2026-06-01 14:09 UTCEG score recompute
  74. 2026-06-01 13:52 UTCEPSS rescore
  75. 2026-06-01 13:52 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45136?
CVE-2026-45136 is a high vulnerability published on May 27, 2026. 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…
When was CVE-2026-45136 disclosed?
CVE-2026-45136 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45136 actively exploited?
CVE-2026-45136 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45136?
CVE-2026-45136 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-45136?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45136, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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