What is CVE-2026-35635?

CVE-2026-35635 is a medium-severity vulnerability in Openclaw, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 4.8/10. Published 2026-04-09.

How severe is CVE-2026-35635?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Auth bypass in Openclaw

CVE-2026-35635

OpenClaw before 2026.3.22 contains a webhook path route replacement vulnerability in the Synology Chat extension that allows attackers to collapse multi-account configurations onto shared webhook paths. Attackers can exploit inherited or duplicate webhook paths to bypass per-account DM access control policies and replace route ownership across accounts.

EPSS: 0.002 (15.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Openclaw — versions 0, 2026.3.22

Weakness classification (CWE)

References

disclosure@vulncheck.com (vendor-advisory, Vendor Advisory, third-party-advisory)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-35635?: CVE-2026-35635 is a medium-severity vulnerability in Openclaw, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 4.8/10. Published 2026-04-09.
How severe is CVE-2026-35635?: Medium severity. CVSS v3 base score is 4.8 out of 10.