CVSS 9.8 · CRITICAL

CVE-2026-43575

OpenClaw versions 2026.2.21 before 2026.4.10 contain an authentication bypass vulnerability in the sandbox noVNC helper route that exposes interactive browser session credentials. Attackers can access the noVNC helper route without bridge authentication to gain unauthorized access to the interactive browser session.

View on NVD

Analysis

OpenClaw appears to be a specialized tool for browser sandboxing and VNC-based testing environments. While the CVSS score is critical due to a pre-authentication bypass that exposes session credentials, the software lacks the widespread deployment in the common MexicoDev stack to justify a general alert.

Severity

Score: 9.8(CRITICAL)

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AV: NETWORK

AC: LOW

PR: NONE

UI: NONE

S: UNCHANGED

C: HIGH

I: HIGH

A: HIGH

Weakness (CWE): CWE-862

EPSS

No EPSS score yet (CVE may be too fresh).

Technical description

Published: 5/6/2026, 8:16:33 PM

Last modified: 5/6/2026, 9:21:14 PM

References

How to read this card

Actively exploited

KEV (Known Exploited Vulnerabilities) is CISA's catalog of CVEs confirmed as actively exploited in the real world. If a CVE is on KEV, someone is already using it in attacks.

CVSS 10.0

CVSS 10.0 — máxima severidad teórica. Explotable de forma remota, sin privilegios, con impacto total. Aún no confirmada como explotada en el mundo real, pero parchea ya.

AI-recommended

Un modelo de lenguaje revisó el CVE y consideró que afecta a software ampliamente desplegado o herramientas comunes de desarrollo. Un humano del equipo aprobó la publicación antes de que llegara aquí.

Categorías de impacto que evalúa la IA

widely_deployed_infra — kernel Linux, OpenSSL, glibc, k8s, Docker, nginx, OpenSSH.

popular_dev_tooling — Node.js, Python, Go, React, Next.js, librerías comunes de npm/pip.

common_consumer_software — Chrome, Firefox, Windows, macOS, apps móviles populares.

enterprise_saas — GitHub, GitLab, Atlassian, Salesforce, Cisco, Fortinet, Ivanti.

niche_software — CMS regionales, herramientas de hobby, librerías de poco uso.

not_relevant — firmware específico de proveedor, software descontinuado.

EPSS — EPSS (Exploit Prediction Scoring System) by FIRST.org estimates the probability that a CVE will be exploited in the next 30 days. Range is 0 to 1; very fresh CVEs typically score low until evidence accumulates.