CVE-2026-53864 | THREATINT

Description

OpenClaw before 2026.5.26 contains an insufficient sanitization vulnerability in the host environment sanitizer that allows Node.js control variables to bypass validation. Attackers with access to workspace .env files, tool environment overrides, or skill environment blocks can pass malicious Node.js control variables to influence child processes or coverage output paths.

PUBLISHED Reserved 2026-06-10 | Published 2026-06-16 | Updated 2026-06-16 | Assigner VulnCheck

HIGH: 7.6CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

Incomplete List of Disallowed Inputs

Product status

Default status

unaffected

Any version before 2026.5.26

affected

2026.5.26 (semver)

unaffected

Credits

Chinmohan Nayak (@nayakchinmohan) reporter

References

github.com/...enclaw/security/advisories/GHSA-ccwh-wwpp-6wg5 (GitHub Security Advisory (GHSA-ccwh-wwpp-6wg5)) vendor-advisory

www.vulncheck.com/...nitization-in-node-js-control-variables (VulnCheck Advisory: OpenClaw < 2026.5.26 - Insufficient Environment Variable Sanitization in Node.js Control Variables) third-party-advisory

cve.org (CVE-2026-53864)

nvd.nist.gov (CVE-2026-53864)

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