CVE-2026-46372
Published: 29 May 2026
Summary
CVE-2026-46372 is a high-severity SSRF (CWE-918) vulnerability. Its CVSS base score is 8.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 45.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
SillyTavern, a locally installed user interface for interacting with text generation large language models, image generation engines, and text-to-speech models, is affected by a server-side request forgery vulnerability in versions prior to 1.18.0. The flaw resides in the exposed /api/search/searxng endpoint, which accepts an attacker-controlled baseUrl parameter and incorporates it directly into outbound server-side HTTP fetches without validation.
An authenticated low-privilege user can exploit the issue by directing the baseUrl at internal or loopback HTTP services, causing the server to retrieve and return the /search response body and thereby disclosing data from otherwise inaccessible endpoints. The vulnerability carries a CVSS score of 8.5 and is categorized under CWE-918.
The issue is resolved in version 1.18.0, as stated in the GitHub security advisory GHSA-qg89-qwwh-5f3j. The associated EPSS score has remained flat at a peak of 0.0289 with no material increase observed after disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-33397
Vulnerability details
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 exposes /api/search/searxng, which accepts attacker-controlled baseUrl and uses it directly to…
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build outbound server-side fetches. An authenticated low-privilege user can point baseUrl at an internal or loopback HTTP service and receive the /search response body. This vulnerability is fixed in 1.18.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
SSRF (CWE-918) via attacker-controlled baseUrl on public-facing /api/search/searxng endpoint directly matches T1190.
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.
Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.
Validates server-side URLs and resource references to block SSRF attempts.
Detects server-side request forgery through monitoring of unexpected outbound connections.