Vulnerability record · CVE-2026-35618 · published 9 April 2026

CVE-2026-35618: Openclaw authentication bypass by capture-replay vulnerability

Openclaw · Openclaw

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.

8.3 CVSS 4.0 High EPSS 0.37% · top 71.4% CWE-294 · Authentication bypass by capture-replay

8.3CVSS 4.0 base score

0.37%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Openclaw Openclaw

References

Link	Tags
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87	Patch
https://github.com/openclaw/openclaw/commit/b0ce53a79cf63834660270513e26d921899b4e5b	Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-cg6c-q2hx-69h7	Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-replay-identity-drift-via-query-only-variants-in-plivo-v2-verification	Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-35618), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.