Description
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the multipart loop in internal/bodyprocessors/multipart.go executes defer temp.Close() for every uploaded file part, so each temporary-file descriptor remains open until the complete request returns. An unauthenticated attacker can submit a multipart body containing many minimal file parts and exhaust the process file-descriptor table within the request-body size limit, causing os.CreateTemp failures, MULTIPART_STRICT_ERROR responses, blocked legitimate uploads, and process-wide inability to open files or sockets. This issue is fixed in version 3.8.0.
Published: 2026-10-09
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-rp9v-7xv3-r6g3 Coraza: Resource exhaustion via deferred file handle accumulation in multipart body processor
History

Fri, 09 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the multipart loop in internal/bodyprocessors/multipart.go executes defer temp.Close() for every uploaded file part, so each temporary-file descriptor remains open until the complete request returns. An unauthenticated attacker can submit a multipart body containing many minimal file parts and exhaust the process file-descriptor table within the request-body size limit, causing os.CreateTemp failures, MULTIPART_STRICT_ERROR responses, blocked legitimate uploads, and process-wide inability to open files or sockets. This issue is fixed in version 3.8.0.
Title OWASP Coraza WAF: Resource exhaustion via deferred file handle accumulation in multipart body processor
Weaknesses CWE-400
CWE-772
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-09T17:41:07.802Z

Reserved: 2026-10-08T22:34:49.289Z

Link: CVE-2026-107834

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-09T18:17:05.007

Modified: 2026-10-09T18:17:05.007

Link: CVE-2026-107834

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T18:30:11Z

Weaknesses