CVE-2026-114100: Coraza from 3.0.4 before 3.8.1 Request Body Inspection Bypass via Content-Type

Severity: medium (CVSS 5.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-21 · updated 2026-10-22
Weakness: CWE-20

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.

Affected products

Go Github.Com/Corazawaf/Coraza/V3: from 3.0.4 before 3.8.1 — fixed in 3.8.1
corazawaf coraza: from 3.0.4 before 3.8.1 — fixed in 3.8.1

How to fix

Upgrade to a fixed version: Go Github.Com/Corazawaf/Coraza/V3 3.8.1; corazawaf coraza 3.8.1. Check the vendor advisory for mitigations.

References

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