CVE-2026-114101Medium· 4.0▾ TwilightPoC availableCoraza 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 22 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 22.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
1 GitHub repo
0.2% → 0.3%
Last analysed / modified upstream
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*.
coraza < 3.8.1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/corazawaf/coraza/v3 < 3.8.1Patched in:
github.com/corazawaf/coraza/v3 3.8.1Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-114099Medium· 5.8Coraza 3.0.0 before 3.8.1 WAF Bypass via JSON Key Collision
CVE-2026-114100Medium· 5.8Coraza from 3.0.4 before 3.8.1 Request Body Inspection Bypass via Content-Type
GHSA-5gj4-9gm7-2fx2Medium· 5.8Coraza body processor has a JSON key collision that allows unauthenticated attackers to bypass OWASP CRS inspection
GHSA-3wr7-993q-jrffMedium· 4.0Coraza: Multipart filename* (RFC 5987) charset restriction lets a decoy filename bypass FILES-based rules
CVE-2026-107835Medium· 4.0OWASP Coraza WAF is a golang modsecurity compatible web application firewall library
CVE-2026-107825Medium· 4.0OWASP Coraza WAF is a golang modsecurity compatible web application firewall library