CVE-2026-43578

critical

Description

OpenClaw versions 2026.3.31 before 2026.4.10 contain a privilege escalation vulnerability where heartbeat owner downgrade detection misses local background async exec completion events. Attackers can exploit this by providing untrusted completion content to leave a run in a more privileged context than intended.

References

Advisories
More

https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-missed-async-exec-completion-events-in-heartbeat-owner-downgrade

https://github.com/openclaw/openclaw/security/advisories/GHSA-g375-h3v6-4873

https://github.com/openclaw/openclaw/commit/19a2e9ddb5a8a494abcba812bb11f51075026a27

Details

Source: Mitre, NVD

Published: 2026-05-06

Updated: 2026-05-07

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

CVSS v4

Base Score: 9.1

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: Critical

EPSS

EPSS: 0.0005