Improper input validation in Corazawaf Coraza
CVE-2026-114099
Coraza from 3.0.0 before 3.8.1 has a JSON body processor that flattens nested properties into dot-separated ARGS_POST names without escaping literal dots, so distinct properties collide. Unauthenticated attackers can add a later dotted property such as account.role that overwrites a malicious nested value, hiding SQL injection payloads from OWASP CRS rules while backends still receive them.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/corazawaf/coraza/security/advisories/GHSA-5gj4-9gm7-2fx2 (vendor-advisory)
- www.vulncheck.com/advisories/coraza-3.0.0-before-3.8.1-waf-bypass-via-json-key-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-114099?
- CVE-2026-114099 is a medium-severity vulnerability in Corazawaf Coraza, classified under Improper Input Validation. CVSS score: 5.8/10. Published 2026-10-21.
- How severe is CVE-2026-114099?
- Medium severity. CVSS v3 base score is 5.8 out of 10.