Is CVE-2026-43566 in the CISA KEV catalog?

No. CVE-2026-43566 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-43566?

CVE-2026-43566 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2026-43566?

CVE-2026-43566 has an EPSS score of 0.42% (34th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-43566?

Upgrade openclaw to 2026.4.14 or later.

CVE & CISA-KEV Catalog

CVE-2026-43566

CRITICAL

9.1

CVSS v3

NVD

Description

OpenClaw versions 2026.4.7 before 2026.4.14 contain a privilege escalation vulnerability where heartbeat owner downgrade logic skips webhook wake events carrying untrusted content. Attackers can exploit this by sending untrusted webhook wake events to preserve owner-like execution context when the run should have been downgraded.

CWE-184

How to fix

Remediation Available

openclawNVD

Affected:>= 2026.4.7, < 2026.4.14Fixed in:2026.4.14CVE-2026-43566derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.42%probability of exploitation in 30 days

34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Third-Party Advisory1

vulncheck.com

Related Vulnerabilities

Other CWE-184 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-5217	Critical	9.8	100%	KEV	-
CVE-2022-43396	High	8.8	57%	-	Fix
CVE-2017-7525	Critical	9.8	38%	-	Fix
CVE-2024-5178	Medium	4.9	34%	-	-
CVE-2018-7489	Critical	9.8	20%	-	Fix
CVE-2018-6383	High	8.8	13%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-07.