CVE-2026-45136Public exploit

Local code execution via Python triple-quote injection

Published May 27, 2026 · Updated May 27, 2026

Code injection in claude-code-cache-fix 3.5.0 through 3.5.1 allows local users to execute Python at the Claude Code user's privilege. The statusline script inserts the hook's JSON stdin into a Python triple-quoted literal, so three apostrophes close the string and turn subsequent payload bytes into Python source. The victim must configure the script as Claude Code's statusLine and enter a hostile POSIX path; execution can read or alter local data and interrupt the session.

CVSS severity8.6
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in claude-code-cache-fix 3.5.0 through 3.5.1 allows local users to execute Python at the Claude Code user's privilege. The statusline script inserts the hook's JSON stdin into a Python triple-quoted literal, so three apostrophes close the string and turn subsequent payload bytes into Python source. The victim must configure the script as Claude Code's statusLine and enter a hostile POSIX path; execution can read or alter local data and interrupt the session.

The record

CVE
CVE-2026-45136
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Veritas Supera IT Solutions LLC
Product
claude-code-cache-fix
Classifications
CWE-94, CWE-78, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 3.5.0, < 3.5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Veritas Supera IT Solutions LLC · claude-code-cache-fixversion=>= 3.5.0, < 3.5.2

Published CVSS scores

7.8GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.6GitHub Security AdvisoryCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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