CVE-2026-53864 | OpenClaw before 2026.5.26 contains an insufficient sanitizat… | CVSS 8.1 HIGH

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.

Metadata

CVE ID: CVE-2026-53864
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-10 21:22 UTC
Published: 2026-06-16 18:05 UTC
Last updated: 2026-06-18 14:23 UTC
Primary CWE: CWE-184
Incomplete List of Disallowed Inputs
Vendor / Product: OpenClaw / OpenClaw
Sources: cve.org · NVD

Severity & Metrics

8.1 HIGH CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
OpenClaw	OpenClaw	—	0 < 2026.5.26, 2026.5.26

Weakness (CWE)

CWE	Source	Description
CWE-184	cna	Incomplete List of Disallowed Inputs

CVSS scores (2)

Score	Severity	Version	Source	Vector
8.1	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
7.6	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References (2)

GitHub Security Advisory (GHSA-ccwh-wwpp-6wg5) https://github.com/openclaw/openclaw/security/advisories/GHSA-ccwh-wwpp-6wg5
VulnCheck Advisory: OpenClaw < 2026.5.26 - Insufficient Environment Variable Sanitization in Node.js Control Variables https://www.vulncheck.com/advisories/openclaw-insufficient-environment-variable-sanitization-in-node-js-control-variables