CVE-2026-44652: Sillytavern

Medium severity, CVSS 6.9. EPSS: 0.4% chance of exploitation in the next 30 days.

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, corsProxyMiddleware forwards req.params.url directly into fetch(url, ...). It only blocks circular requests to its own host and does not enforce destination allowlist or private/loopback restrictions, enabling SSRF. This vulnerability is fixed in 1.18.0.

Affected products

• Sillytavern Sillytavern: before 1.18.0 (fixed in 1.18.0)

Published 2026-05-29. Last modified 2026-07-22.