corazawaf Coraza up to 3.7.x Transaction transaction.go ProcessURI input validation

Summaryinfo

A vulnerability classified as problematic has been found in corazawaf Coraza up to 3.7.x. Impacted is the function ProcessURI of the file internal/corazawaf/transaction.go of the component Transaction. This manipulation causes input validation. This vulnerability is handled as CVE-2026-107825. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in corazawaf Coraza up to 3.7.x. Affected by this vulnerability is the function ProcessURI of the file internal/corazawaf/transaction.go of the component Transaction. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. The summary by CVE is:

OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, ProcessURI in internal/corazawaf/transaction.go handles a url.ParseRequestURI failure by retaining the raw URI but leaving QUERY_STRING, ARGS_GET, ARGS_GET_NAMES, and the GET-derived portion of ARGS empty. An unauthenticated attacker can place control bytes in a URI passed directly by integrations such as coraza-spoa, coraza-proxy-wasm, custom FFI hosts, or WASM hosts, causing Coraza to omit query parameters that the downstream integration may still process and allowing rules targeting those variables to be bypassed. The bundled coraza/v3/http integration is not affected because Go net/http rejects such malformed request targets before calling Coraza. This issue is fixed in version 3.8.0.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-107825 since 10/08/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

Upgrading to version 3.8.0 eliminates this vulnerability.

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Productinfo

Vendor

• corazawaf

Name

• Coraza

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7

Website

• Product: https://github.com/corazawaf/coraza/

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