SillyTavern: SSRF vulnerability in the CORS proxy middleware_CVE-2026-44652

6.9 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

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, 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.

Basic Information

ID CVE-2026-44652

Source GitHub_M

Published May 29, 2026 at 17:43

Affected Product

Vendor SillyTavern

Product SillyTavern

Version < 1.18.0

Affected Versions SillyTavern SillyTavern < 1.18.0

CWE Classification

CWE-918

References

github.com /SillyTavern/SillyTavern/security/advisories/GHSA-ccfq-2454-f5xw

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    "published": "2026-05-29T17:43:07.425Z",
    "modified": "2026-05-29T17:43:07.425Z",
    "type": "cve",
    "title": "SillyTavern: SSRF vulnerability in the CORS proxy middleware",
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