Coraza before 3.8.1 Multipart filename* Charset Handling FILES Rule Bypass
Coraza before 3.8.1 extracts multipart upload filenames with Go's mime.ParseMediaType, which silently ignores RFC 5987 filename* parameters whose charset is not utf-8 or us-ascii. Unauthenticated attackers can send a decoy filename with filename*=iso-8859-1''shell.php, or filename* alone, so FILES-based rules never see the real name, letting dangerous uploads reach backends that honor filename*.
CVE-2026-114101
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-2026-114101
coraza
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.
[
{
"vendor": "corazawaf",
"product": "coraza",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "3.8.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.8.1",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/github.com/corazawaf/coraza/v3",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-114101
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #44975 · Revision 1
- Added to Heist Feed
- Publisher date