CVE-2026-43531: OpenClaw < 2026.4.9 - Environment Variable Injection via Workspace .env File

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-05 · updated 2026-06-17
Weakness: CWE-15

Description

OpenClaw before 2026.4.9 contains an environment variable injection vulnerability allowing malicious workspace .env files to set runtime-control variables. Attackers can inject variables affecting update sources, gateway URLs, ClawHub resolution, and browser executable paths to compromise application behavior.

Affected products

OpenClaw: before 2026.4.9 — fixed in 2026.4.9

How to fix

Upgrade to a fixed version: OpenClaw 2026.4.9. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/dbfcef319618158fa40b31cdac386ea34c392c0c
https://github.com/openclaw/openclaw/security/advisories/GHSA-7wv4-cc7p-jhxc
https://www.vulncheck.com/advisories/openclaw-environment-variable-injection-via-workspace-env-file

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