SillyTavern 1.12.13 through 1.19.0 Pre-Authentication Denial of Service via Body Parsing
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.
CVE-2026-108545
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-108545
SillyTavern
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/SillyTavern/SillyTavern",
"vendor": "SillyTavern",
"product": "SillyTavern",
"versions": [
{
"status": "affected",
"version": "1.12.13",
"versionType": "semver",
"lessThanOrEqual": "1.19.0"
}
],
"packageURL": "pkg:github/SillyTavern/SillyTavern",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-108545
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #22149 · Revision 1
- Added to Heist Feed
- Publisher date