What is CVE-2026-35664?

CVE-2026-35664 is a medium-severity vulnerability in Openclaw, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 5.3/10. Published 2026-04-10.

How severe is CVE-2026-35664?

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

Vulnerability in Openclaw

CVE-2026-35664

OpenClaw before 2026.3.25 contains an authentication bypass vulnerability in raw card send surface that allows unpaired recipients to mint legacy callback payloads. Attackers can send raw card commands to bypass DM pairing restrictions and reach callback handling without proper authorization.

Published 2026-04-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Openclaw — versions 0, 2026.3.25

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

github.com/openclaw/openclaw/security/advisories/GHSA-77w2-crqv-cmv3 (vendor-advisory, Vendor Advisory, third-party-advisory)
github.com/openclaw/openclaw/commit/81c45976db532324b5a0918a70decc19520dc354 (Patch, patch)
www.vulncheck.com/advisories/openclaw-dm-pairing-bypass-via-legacy-card-callbac… (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-35664?: CVE-2026-35664 is a medium-severity vulnerability in Openclaw, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 5.3/10. Published 2026-04-10.
How severe is CVE-2026-35664?: Medium severity. CVSS v3 base score is 5.3 out of 10.