All vulnerabilities
CVE-2026-114100GHSA-w253-m66g-rx24GO-2026-6698

Coraza from 3.0.4 before 3.8.1 Request Body Inspection Bypass via Content-Type

corazawaf corazaGoLibraries & packages
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.22%Chance of exploitation activity in the next 30 days, higher than 12% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.8.1Fixed versionCVE List
Published21 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

  • 3.8.1corazaCVE List
  • 3.8.1github.com/corazawaf/coraza/v3, GoOSVgo get github.com/corazawaf/coraza/v3@v3.8.1

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Coraza from 3.0.4 before 3.8.1 contains a request body inspection bypass because request-body processor selection compares the entire Content-Type value exactly, so URL-encoded bodies whose Content-Type carries a media-type parameter are never parsed. Unauthenticated attackers can send application/x-www-form-urlencoded; charset=UTF-8 to keep ARGS_POST and REQUEST_BODY empty, evading body rules while the backend still processes the payload.

Text from CVE List

Affected versions 3

  • corazaaffected: 3.0.4 before 3.8.1CVE List
  • corazaunaffected: 3.8.1CVE List
  • github.com/corazawaf/coraza/v3, Gofrom 3.0.4, fixed in 3.8.1OSV

References 2