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Description

OpenClaw gateway plugin versions prior to 2026.2.26 contain a path traversal vulnerability that allows remote attackers to bypass route authentication checks by manipulating /api/channels paths with encoded dot-segment traversal sequences. Attackers can craft alternate paths using encoded traversal patterns to access protected plugin channel routes when handlers normalize the incoming path, circumventing security controls.

PUBLISHED Reserved 2026-03-10 | Published 2026-03-19 | Updated 2026-03-20 | Assigner VulnCheck




HIGH: 8.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

MEDIUM: 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

Problem types

CWE-289 Authentication Bypass by Alternate Name

Product status

Default status
unaffected

Any version before 2026.2.26
affected

2026.2.26 (semver)
unaffected

Credits

Peng Zhou (@zpbrent) reporter

References

github.com/...enclaw/security/advisories/GHSA-mwxv-35wr-4vvj (GitHub Security Advisory (GHSA-mwxv-35wr-4vvj)) third-party-advisory

github.com/...ommit/258d615c45527ffda37cecd08cd268f97461bde0 (Patch Commit) patch

www.vulncheck.com/...d-dot-segment-traversal-in-api-channels (VulnCheck Advisory: OpenClaw < 2026.2.26- Authentication Bypass via Encoded Dot-Segment Traversal in /api/channels) third-party-advisory

cve.org (CVE-2026-32036)

nvd.nist.gov (CVE-2026-32036)

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