What is CVE-2026-8305?

CVE-2026-8305 is a high-severity vulnerability in Openclaw, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-05-11.

How severe is CVE-2026-8305?

High severity. CVSS v3 base score is 7.3 out of 10.

Auth bypass in Openclaw

CVE-2026-8305

A vulnerability was detected in OpenClaw up to 2026.1.24. The impacted element is the function handleBlueBubblesWebhookRequest of the file extensions/bluebubbles/src/monitor.ts of the component bluebubbles Webhook. Performing a manipulation results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 2026.2.12 is sufficient to resolve this issue. The patch is named a6653be0265f1f02b9de46c06f52ea7c81a836e6. The affected component should be upgraded.

Vulnerability class: Broken Authentication

Published 2026-05-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.011 (64.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.011 · change: +0.005

Affected products

Openclaw
Openclaw — versions 2026.1.0, 2026.1.1, 2026.1.2

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

vuldb.com/vuln/362590 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/vuln/362590/cti (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/submit/809371 (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/openclaw/openclaw/issues/13786 (issue-tracking, Exploit, Mitigation, Issue Tracking)
github.com/openclaw/openclaw/pull/13787 (issue-tracking, Patch, patch, Issue Tracking)
github.com/Dave-gilmore-aus/security-advisories/blob/main/ClawdBot(aka OpenClaw… (Exploit, exploit, Mitigation, Vendor Advisory)
github.com/openclaw/openclaw/commit/a6653be0265f1f02b9de46c06f52ea7c81a836e6 (Patch, patch)
github.com/openclaw/openclaw/releases/tag/v2026.2.12 (Release Notes, patch)
github.com/openclaw/openclaw/ (Product, product)

Frequently asked questions

What is CVE-2026-8305?: CVE-2026-8305 is a high-severity vulnerability in Openclaw, classified under Improper Authentication. CVSS score: 7.3/10. Published 2026-05-11.
How severe is CVE-2026-8305?: High severity. CVSS v3 base score is 7.3 out of 10.