CVE-2026-44648

CVE-2026-44648 · SillyTavern: Existing sessions are not invalidated after password change, allowing session reuse and account takeover

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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 relies on cookie-session for authentication, storing all session data (user handle, permissions) in a signed cookie. The endpoints POST /api/users/change-password and POST /api/users/recover-step2 only update the password hash in the database but do not expire current sessions. Because the session is stateless and stored entirely in the client cookie, there is no server-side mechanism to revoke a token once issued. This vulnerability is fixed in 1.18.0.

CVSS 7.5 · Élevée · EPSS 0,4% · Correctif disponible

Publication

2026-05-29T17:46:27.574Z

Mise à jour

2026-05-29T19:47:10.723Z

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