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CVE-2026-107833 Details

Description

OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, ProcessResponse in internal/bodyprocessors/json.go passes the ignoreJSONRecursionLimit value of -1 to readJSON, while the recursive guard only stops at zero. A network attacker who can cause an application protected by Coraza to return deeply nested JSON can make response-body processing perform quadratic work, consuming one CPU core for seconds per response within the default ResponseBodyLimit. Request JSON processing is not affected by this specific path because it uses the configured request recursion limit, and exploitation requires response-body inspection to be enabled. This issue is fixed in version 3.8.0.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/corazawaf/coraza/security/advisories/GHSA-3c6w-j9xm-8h2h	CISA-ADP
https://github.com/corazawaf/coraza/commit/cae3c7407e7b84372c207033de03f15f89bf351a	[email protected]
https://github.com/corazawaf/coraza/releases/tag/v3.8.0	[email protected]
https://github.com/corazawaf/coraza/security/advisories/GHSA-3c6w-j9xm-8h2h	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-674	Uncontrolled Recursion	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 9, 2026	New CVE Received	[email protected]
Oct 9, 2026	CVE Modified	CISA-ADP