CVE-2026-45136

Published May 27th, 2026

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CVSS v3

7.8

HIGH

CVSS v2

N/A

Affected

PROJECT

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.

cnighswonger/claude-code-cache-fix

Fixes prompt cache regression in Claude Code that causes up to 20x cost increase on resumed sessions

GitHub

290