CVE-2026-45003: openclaw — Fix

Description

OpenClaw before 2026.4.22 allows workspace dotenv files to override connector endpoint hosts for Matrix, Mattermost, IRC, and Synology connectors. Attackers with workspace access can redirect runtime traffic to malicious endpoints by setting endpoint variables in dotenv files.

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CVSS v3.1 Score

5.0

MEDIUM

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

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-441 CWE-441

Affected Products

Vendor	Product	Versions
openclaw	openclaw	< 2026.4.22

References

Advisories & Patches

https://github.com/openclaw/openclaw/commit/0623079e98abf7202591f1b04a89755eb7ec9272 https://www.vulncheck.com/advisories/openclaw-connector-endpoint-host-override-via-workspace-dotenv-files

Other References

https://github.com/openclaw/openclaw/security/advisories/GHSA-55cf-xx38-4p9p

Frequently Asked Questions

What is CVE-2026-45003? +

OpenClaw before 2026.4.22 allows workspace dotenv files to override connector endpoint hosts for Matrix, Mattermost, IRC, and Synology connectors. Attackers with workspace access can redirect runtime traffic to malicious endpoints by setting endpoint variables in dotenv files. It has a CVSS v3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2026-45003? +

CVE-2026-45003 has a CVSS v3.1 score of 5.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-45003? +

CVE-2026-45003 affects products from openclaw, specifically: openclaw. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-45003? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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