OpenClaw: Trailing-dot localhost CDP hosts could bypass remote loopback protections
Summary
Before OpenClaw 2026.4.2, remote CDP discovery could return a trailing-dot localhost host such as localhost. and bypass OpenClaw's loopback-host normalization. That let a non-loopback remote CDP profile pivot the follow-up connection back onto localhost.
Impact
A hostile discovery response could retarget authenticated browser control toward a localhost-resolving endpoint on the OpenClaw host. This weakened the existing remote-CDP loopback protection and could expose localhost-backed browser state.
Affected Packages / Versions
- Package:
openclaw(npm) - Affected versions:
<= 2026.4.1 - Patched versions:
>= 2026.4.2 - Latest published npm version:
2026.4.1
Fix Commit(s)
9c22d636697336a6b22b0ae24798d8b8325d7828— normalize localhost absolute-form CDP hosts before loopback checks
Release Process Note
The fix is present on main and is staged for OpenClaw 2026.4.2. Publish this advisory after the 2026.4.2 npm release is live.
Thanks @smaeljaish771 for reporting.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | openclaw | < 2026.4.2 | 2026.4.2 |
Referencias
- https://github.com/openclaw/openclaw/security/advisories/GHSA-fh32-73r9-rgh5
- https://nvd.nist.gov/vuln/detail/CVE-2026-41372
- https://github.com/openclaw/openclaw/commit/9c22d636697336a6b22b0ae24798d8b8325d7828
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-loopback-protection-bypass-via-trailing-dot-localhost-in-cdp-discovery
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N- Debilidad (CWE)
CWE-20, CWE-639- Plataforma
- npm
- Paquete
openclaw- Publicada
- 07.04.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-fh32-73r9-rgh5 - CC BY 4.0
Historial de vulnerabilidades: openclaw
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 588
- Primera → última
- 02.2026 07.2026
- Sin corrección
- 9
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 20
- Alta 215
- Media 299
- Baja 54
Divulgaciones por año
- 2026: 588
-
OpenClaw: Trailing-dot localhost CDP hosts could bypass remote loopback protections esta entrada
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