Description
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.
Published: 2026-10-21
Score: 6.9 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Wed, 21 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Coraza 3.0.0 before 3.8.1 WAF Bypass via JSON Key Collision
First Time appeared Coraza
Coraza coraza
Weaknesses CWE-20
CPEs cpe:2.3:a:coraza:coraza:*:*:*:*:*:*:*:*
Vendors & Products Coraza
Coraza coraza
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-21T00:37:01.866Z

Reserved: 2026-10-20T21:46:55.741Z

Link: CVE-2026-114099

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-21T01:17:35.443

Modified: 2026-10-21T01:17:35.443

Link: CVE-2026-114099

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses