High severity7.5NVD Advisory· Published Apr 28, 2026· Updated Apr 30, 2026
CVE-2026-41395
CVE-2026-41395
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | < 2026.3.28 | 2026.3.28 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-8689-gm9g-jgr6ghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-8689-gm9g-jgr6nvdVendor AdvisoryWEB
- www.vulncheck.com/advisories/openclaw-webhook-replay-via-query-parameter-reordering-in-plivo-v3nvdThird Party Advisory
- github.com/openclaw/openclaw/commit/85777e726cb02c01a911b3ff832ddf4d664d5c94ghsaWEB
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