CVE-2026-43578 | THREATINT

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.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-06 | Updated 2026-05-07 | Assigner VulnCheck

CRITICAL: 9.1CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CRITICAL: 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-184: Incomplete List of Disallowed Inputs

Product status

Default status

unaffected

2026.3.31 (semver) before 2026.4.10

affected

2026.4.10 (semver)

unaffected

Credits

zsx (@zsxsoft) reporter

qclawer tool

KeenSecurityLab coordinator

References

github.com/...enclaw/security/advisories/GHSA-g375-h3v6-4873 (GitHub Security Advisory (GHSA-g375-h3v6-4873)) vendor-advisory

github.com/...ommit/19a2e9ddb5a8a494abcba812bb11f51075026a27 (Patch Commit) patch

www.vulncheck.com/...ion-events-in-heartbeat-owner-downgrade (VulnCheck Advisory: OpenClaw 2026.3.31 < 2026.4.10 - Privilege Escalation via Missed Async Exec Completion Events in Heartbeat Owner Downgrade) third-party-advisory

cve.org (CVE-2026-43578)

nvd.nist.gov (CVE-2026-43578)

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