CVE-2026-100527
OpenClaw before 2026.8.2 Denial of Service via Browser Relay
- State
- Published
- Severity
- 6.9 Medium
- Published
- Sep 26, 2026
- Updated
- Oct 5, 2026
- Reserved
- Sep 26, 2026
Description
OpenClaw before 2026.8.2 contains a denial of service vulnerability in the Browser extension relay that allows unauthenticated network sources to exhaust pending-authentication capacity. Attackers can hold every pending slot by maintaining silent WebSocket upgrades, preventing paired extensions from completing Browser Relay Authentication v2.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
- GitHub Security Advisory (GHSA-m78m-7h3q-q938)vendor-advisory
- VulnCheck Advisory: OpenClaw before 2026.8.2 Denial of Service via Browser Relaythird-party-advisory
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