CVE-2026-114101
mediumCoraza before 3.8.1 extracts multipart upload filenames with Go's mime.ParseMediaType, which silently ignores RFC 5987 filename* parameters whose charset is no…
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*.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/corazawaf/coraza/security/advisories/GHSA-3wr7-993q-jrff disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/coraza-before-3.8.1-multipart-filename-charset-handli... disclosure@vulncheck.com
- https://github.com/corazawaf/coraza/security/advisories/GHSA-3wr7-993q-jrff 134c704f-9b21-4f2e-91b3-4a467353bcc0