CVE-2026-41395
HIGHOpenClaw < 2026.3.28 - Webhook Replay via Query Parameter Reordering in Plivo V3
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-8689-gm9g-jgr6)
https://github.com/openclaw/openclaw/security/advisories/GHSA-8689-gm9g-jgr6
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.3.28 - Webhook Replay via Query Parameter Reordering in Plivo V3
https://www.vulncheck.com/advisories/openclaw-webhook-replay-via-query-parameter-reordering-in-plivo-v3
Scores
CVSS v3
7.5
EPSS
0.0002
EPSS Percentile
4.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-325
Status
published
Products (4)
npm/openclaw
0 - 2026.3.28npm
OpenClaw/OpenClaw
< 2026.3.28
openclaw/openclaw
< 2026.3.28
OpenClaw/OpenClaw
2026.3.28
Published
Apr 28, 2026
Tracked Since
Apr 29, 2026