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Description

OpenClaw before 2026.3.23 contains a replay identity vulnerability in Plivo V2 signature verification that allows attackers to bypass replay protection by modifying query parameters. The verification path derives replay keys from the full URL including query strings instead of the canonicalized base URL, enabling attackers to mint new verified request keys through unsigned query-only changes to signed requests.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-09 | Updated 2026-04-10 | 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-294 Authentication Bypass by Capture-replay

Product status

Default status
unaffected

Any version before 2026.3.23
affected

2026.3.23 (semver)
unaffected

Credits

smaeljaish771 reporter

KeenSecurityLab finder

References

github.com/...enclaw/security/advisories/GHSA-cg6c-q2hx-69h7 (GitHub Security Advisory (GHSA-cg6c-q2hx-69h7)) third-party-advisory

github.com/...ommit/630f1479c44f78484dfa21bb407cbe6f171dac87 (Patch Commit #1) patch

github.com/...ommit/b0ce53a79cf63834660270513e26d921899b4e5b (Patch Commit #2) patch

www.vulncheck.com/...-only-variants-in-plivo-v2-verification (VulnCheck Advisory: OpenClaw < 2026.3.23 - Replay Identity Drift via Query-Only Variants in Plivo V2 Verification) third-party-advisory

cve.org (CVE-2026-35618)

nvd.nist.gov (CVE-2026-35618)

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