CVE-2026-44648: SillyTavern is a locally installed user interface that allows users to interact with text generation large language mode
highvulnerability
security
Summary
SillyTavern is a locally installed interface for interacting with text generation AI models. Before version 1.18.0, it had a security flaw where changing a password or recovering an account didn't log out existing sessions, because all session information was stored in a signed cookie (a small piece of data the browser keeps) rather than on the server, making it impossible to revoke access even after a password change.
Solution / Mitigation
This vulnerability is fixed in version 1.18.0.
Vulnerability Details
CVSS Score
7.5(high)
EPSS (30-day exploit probability)
EPSS: 0.0%
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
network
Attack Complexity
high
Privileges Required
none
User Interaction
required
Disclosure Date
May 29, 2026
Classification
Attack Type
Other
Attack SophisticationTrivial
Impact (CIA+S)
integrityconfidentiality
Taxonomy References
CWE (Weakness Type)
Affected Vendors
Related Issues
Monthly digest — independent AI security research
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-44648
First tracked: May 29, 2026 at 08:09 PM
Classified by LLM (prompt v3) · confidence: 92%