CVE-2026-41395

EUVD-2026-26103
OpenClaw before 2026.3.28 contains a webhook replay vulnerability in Plivo V3 signature verification that canonicalizes query ordering for signatures but hashes raw URLs for replay detection. Attackers can reorder query parameters to bypass replay cache detection and trigger duplicate voice-call processing with a captured valid signed webhook.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
openclawopenclaw
𝑥
< 2026.3.28
CNA
Common Weakness Enumeration
References
https://github.com/openclaw/openclaw/security/advisories/GHSA-8689-gm9g-jgr6
https://www.vulncheck.com/advisories/openclaw-webhook-replay-via-query-parameter-reordering-in-plivo-v3