What is CVE-2026-53857?

CVE-2026-53857 is a high-severity vulnerability in Openclaw, classified under Authentication Bypass by Spoofing. CVSS score: 8.1/10. Published 2026-06-16.

How severe is CVE-2026-53857?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Openclaw

CVE-2026-53857

OpenClaw before 2026.5.3 contains a policy enforcement vulnerability where Zalo contacts with mutable display metadata could match allowFrom policy entries through display name changes. Attackers with mutable display names could receive ag…

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Openclaw — versions 0, 2026.5.3

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-53857?: CVE-2026-53857 is a high-severity vulnerability in Openclaw, classified under Authentication Bypass by Spoofing. CVSS score: 8.1/10. Published 2026-06-16.
How severe is CVE-2026-53857?: High severity. CVSS v3 base score is 8.1 out of 10.