Vulnerability · Published Apr 23, 2026 · Assigned by VulnCheck

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

Medium 5.3

In plain English

A medium-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.2%top 86.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.3.31	GHSA-89r3-6x4j-v7wf

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.3.31

Weakness: CWE-367 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-89r3-6x4j-v7wf) vendor-advisory
Patch Commit patch
VulnCheck Advisory: OpenClaw < 2026.3.31 - Callback Origin Mutation in Plivo Voice-call Replay third-party-advisory