CVE-2026-45136
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductCnighswonger Claude-code-cache-fix
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-78OS command injectionCWE-94Code injection
How to fix
Update
- cnighswonger claude-code-cache-fix3.5.2 or later
- claude-code-cache-fix3.5.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cnighswonger claude-code-cache-fix | 3.5.0 ≤ v < 3.5.2 | 3.5.2 |
| claude-code-cache-fixnpm | 3.5.0 ≤ v < 3.5.2 | 3.5.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.