What’s Vulnerable › Vulnerabilities

CVE-2026-35618: OpenClaw < 2026.3.23 - Replay Identity Drift via Query-Only Variants in Plivo V2 Verification

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-09 · updated 2026-06-17
• Weakness: CWE-294

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.

Affected products

• OpenClaw: before 2026.3.23 — fixed in 2026.3.23

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.23. Check the vendor advisory for mitigations.

References

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

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