CVE-2026-108545 (GCVE-0-2026-108545)

Vulnerability from cvelistv5 – Published: 2026-10-10 14:15 – Updated: 2026-10-10 14:15
VLAI
Title
SillyTavern 1.12.13 through 1.19.0 Pre-Authentication Denial of Service via Body Parsing
Summary
SillyTavern 1.12.13 through 1.19.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust resources because body-parser middleware runs before authentication and whitelist checks. Attackers can send large or compressed JSON or urlencoded bodies up to 500 MB, optionally in parallel, to exhaust memory and CPU and deny service.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5307 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
SillyTavern SillyTavern Affected: 1.12.13 , ≤ 1.19.0 (semver)
    cpe:2.3:a:sillytavern:sillytavern:*:*:*:*:*:*:*:*
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Date Public
2026-10-09 00:00
Credits
HaiND from the Post and Telecommunication Institute of Technology
Show details on NVD website
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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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