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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.

PUBLISHED Reserved 2026-05-08 | Published 2026-05-11 | Updated 2026-05-11 | Assigner VulnCheck




MEDIUM: 4.1CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.0CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Problem types

Unintended Proxy or Intermediary ('Confused Deputy')

Product status

Default status
unaffected

Any version before 2026.4.22
affected

2026.4.22 (semver)
unaffected

Credits

Qi Deng (@qi-scape) reporter

References

github.com/...enclaw/security/advisories/GHSA-55cf-xx38-4p9p (GitHub Security Advisory (GHSA-55cf-xx38-4p9p)) vendor-advisory

github.com/...ommit/0623079e98abf7202591f1b04a89755eb7ec9272 (Patch Commit) patch

www.vulncheck.com/...ost-override-via-workspace-dotenv-files (VulnCheck Advisory: OpenClaw < 2026.4.22 - Connector Endpoint Host Override via Workspace dotenv Files) third-party-advisory

cve.org (CVE-2026-45003)

nvd.nist.gov (CVE-2026-45003)

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