CVE-2026-44649
CVE-2026-44649 · SillyTavern: Authentication Bypass via SSO Header Injection
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SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to 1.18.0, SillyTavern accepts Remote-User (Authelia) and X-Authentik-Username (Authentik) HTTP headers to automatically log in users when SSO is configured. There is no validation that these headers originate from a trusted reverse proxy. Any network client that can reach the SillyTavern port directly can inject these headers and authenticate as any user, including administrators, without a password. This vulnerability is exploitable only when sso.autheliaAuth: true or sso.authentikAuth: true is set in config.yaml (both default to false). This vulnerability is fixed in 1.18.0.
CVSS 9.8 · Critique · EPSS 0,2% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
sillytavern
- Versions du logiciel
- < 1.18.0: Concernée
Aucun correctif publié
sillytavern npm
- Plages de versions concernées
- SEMVER: < 1.18.0
Mettez à jour vers 1.18.0