CVE-2026-3691: OpenClaw Client PKCE Verifier Information Disclosure Vulnerability

Routine

MEDIUM 5.3UPGRADE

CVE-2026-3691 is a medium-severity flaw (CVSS 5.3) affecting openclaw. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 in that the target must initiate an OAuth authorization flow. The specific flaw exists within the implementation of OAuth authorization. The issue results from the exposure of sensitive data in the authorizati

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-04-11
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: openclaw

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-11 01:16 UTCPublished CVE record published
2026-06-17 10:44 UTCUpdated Record last modified

openclaw openclaw UPGRADE

Affected: < 2026.2.25

Fixed in: 2026.2.25

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls openclaw

2. UPGRADE to 2026.2.25

npm install openclaw@">=2026.2.25"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-3691?

openclaw: upgrade to 2026.2.25. Exact commands for each OS are on this page.

Is CVE-2026-3691 being exploited?

CVE-2026-3691 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-3691 affect?

CVE-2026-3691 affects openclaw. Severity is medium (CVSS 5.3). 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

How urgent is CVE-2026-3691?

Priority 28/100. No elevated risk signals yet.

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References

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