CVE Watch22 jul 2026

CVE-2026-44649

SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation

CVSS

9.8

Crítico

EPSS

0.2%

p12

KEV

—

Exploit Today

0-100

Publicado: 29 may 2026 · Última mod.: 22 jul 2026 · CWE-290 · CWE-306 · CWE-346

EPSS · 30d

0.2%EPSS · 30 días0.2%

2026-06-302026-07-22

Descripción técnica

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.

Referencias oficiales

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