CVE-2026-41337: OpenClaw < 2026.3.31 - Callback Origin Mutation in Plivo Voice-call Replay

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-23 · updated 2026-06-17
Weakness: CWE-367

Description

OpenClaw before 2026.3.31 contains a callback origin mutation vulnerability in Plivo voice-call replay that allows attackers to mutate in-process callback origin before replay rejection. Attackers with captured valid callbacks for live calls can exploit this to manipulate callback origins during the replay process.

Affected products

OpenClaw: before 2026.3.31 — fixed in 2026.3.31

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.31. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/efe9183f9d2fd5e01c8068fa01f4a07a58a63c0b
https://github.com/openclaw/openclaw/security/advisories/GHSA-89r3-6x4j-v7wf
https://www.vulncheck.com/advisories/openclaw-callback-origin-mutation-in-plivo-voice-call-replay

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