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.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/corazawaf/coraza/security/advisories/GHSA-5gj4-9gm7-2fx2
https://www.vulncheck.com/advisories/coraza-3.0.0-before-3.8.1-waf-bypass-via-json-key-collision
https://github.com/corazawaf/coraza/security/advisories/GHSA-5gj4-9gm7-2fx2

Configurations

No configuration.

History

28 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://github.com/corazawaf/coraza/security/advisories/GHSA-5gj4-9gm7-2fx2 -~~	() https://github.com/corazawaf/coraza/security/advisories/GHSA-5gj4-9gm7-2fx2 -

21 Oct 2026, 01:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 01:17

Updated : 2026-10-28 17:17

NVD link : CVE-2026-114099

Mitre link : CVE-2026-114099

CVE.ORG link : CVE-2026-114099

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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