CVE-2026-42073
CVE-2026-42073 · OpenClaude's MCP OAuth Callback: State Check Bypass via error Param Leads to DoS
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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.
CVSS 6.5 · Moyenne · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
openclaude
- Versions du logiciel
- < 0.5.1: Concernée
Aucun correctif publié
@gitlawb/openclaude npm
- Plages de versions concernées
- SEMVER: < 0.5.1
Mettez à jour vers 0.5.1