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.
Metrics
Affected Vendors & Products
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History
Tue, 13 Oct 2026 22:30:00 +0000
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ssvc
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Sun, 11 Oct 2026 12:15:00 +0000
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Coraza
Coraza coraza |
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Coraza
Coraza coraza |
Fri, 09 Oct 2026 17:45:00 +0000
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| 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 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-09T17:41:07.802Z
Updated: 2026-10-13T20:26:52.261Z
Reserved: 2026-10-08T22:34:49.289Z
Link: CVE-2026-107834
Updated: 2026-10-13T20:19:12.990Z
Status : Awaiting Analysis
Published: 2026-10-09T18:17:05.007
Modified: 2026-10-16T17:16:41.300
Link: CVE-2026-107834
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