What is CVE-2026-3691?

CVE-2026-3691 is a medium-severity vulnerability in Openclaw, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-04-11.

How severe is CVE-2026-3691?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Openclaw

CVE-2026-3691

OpenClaw Client PKCE Verifier Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose stored credentials on affected installations of OpenClaw. User interaction is required to exploit this vulnerability…

Vulnerability class: Information Disclosure

EPSS: 0.001 (22.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Openclaw — versions 2026.2.21

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

ZDI-26-229 (x_research-advisory)
vendor-provided URL (vendor-advisory)

Frequently asked questions

What is CVE-2026-3691?: CVE-2026-3691 is a medium-severity vulnerability in Openclaw, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-04-11.
How severe is CVE-2026-3691?: Medium severity. CVSS v3 base score is 5.3 out of 10.