CVE Watch22 jul 2026

CVE-2026-42073

OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version 0.5.1, the OpenClaude

CVSS

6.5

Medio

EPSS

0.2%

p13

KEV

—

Exploit Today

0-100

Publicado: 2 jun 2026 · Última mod.: 22 jul 2026 · CWE-352 · CWE-400

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-07-222026-08-19

Descripción técnica

OpenClaude is an open-source coding-agent command line interface for cloud and local model providers. Prior to version 0.5.1, the OpenClaude MCP authentication flow starts a temporary local HTTP server to handle OAuth callbacks. To prevent CSRF attacks, the server validates a state parameter against an internally stored value. However, due to a logic flaw in the order of conditionals, an attacker can completely bypass this check and force the server to shut down — without knowing the state value at all. This issue has been patched in version 0.5.1.

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