Vulnerability Description
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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-wmm3-h9qj-p5
- https://github.com/SillyTavern/SillyTavern/security/advisories/GHSA-wmm3-h9qj-p5
FAQ
What is CVE-2026-44648?
CVE-2026-44648 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, ...
How severe is CVE-2026-44648?
CVE-2026-44648 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44648?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.