---
id: CVE-2026-107833
title: >-
  OWASP Coraza WAF is a golang modsecurity compatible web application firewall
  library
summary: >-
  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 recur…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-674
vendor: corazawaf
product: github.com/corazawaf/coraza/v3
affected:
  - 'github.com/corazawaf/coraza/v3 >= 3.0.0, < 3.8.0'
patched:
  - github.com/corazawaf/coraza/v3 3.8.0
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T18:17:04.847'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107833'
references:
  - url: >-
      https://github.com/corazawaf/coraza/commit/cae3c7407e7b84372c207033de03f15f89bf351a
    label: security-advisories@github.com
  - url: 'https://github.com/corazawaf/coraza/releases/tag/v3.8.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/corazawaf/coraza/security/advisories/GHSA-3c6w-j9xm-8h2h
    label: security-advisories@github.com
  - url: >-
      https://github.com/corazawaf/coraza/security/advisories/GHSA-3c6w-j9xm-8h2h
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-3c6w-j9xm-8h2h'
tags:
  - nvd
  - ghsa
  - go
aliases:
  - GHSA-3c6w-j9xm-8h2h
ecosystem: go
ingestedAt: '2026-10-09T18:07:39.420Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-107833)

Affected packages:

- `github.com/corazawaf/coraza/v3 >= 3.0.0, < 3.8.0`

Patched in:

- `github.com/corazawaf/coraza/v3 3.8.0`

Source: https://github.com/advisories/GHSA-3c6w-j9xm-8h2h