CVE-2026-107834

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Source
https://cve.org/CVERecord?id=CVE-2026-107834
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107834.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-107834
Aliases
Published
2026-10-09T17:41:07Z
Modified
2026-10-28T02:30:23Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
OWASP Coraza WAF: Resource exhaustion via deferred file handle accumulation in multipart body processor
Details

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.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-400",
        "CWE-772"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107834.json"
}
References

Affected packages

Git / github.com/corazawaf/coraza

Affected ranges

Type
GIT
Repo
https://github.com/corazawaf/coraza
Events
Introduced
ad50864cfa00f5143fff7f6877847326fdc4b394
Fixed
19b86824f5e97eba72b289a81d5b3c1260292ff0
Fixed
1bc39036e99c88e7de60cf8e6bb55ee4c311223c
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "3.0.0"
                },
                {
                    "fixed":  "3.8.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "1bc39036e99c88e7de60cf8e6bb55ee4c311223c"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "v3.8.0",
            "range":  [
                {
                    "fixed":  "19b86824f5e97eba72b289a81d5b3c1260292ff0"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.1.0
v3.2.0
v3.2.1
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.4.0
v3.5.0
v3.6.0
v3.7.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107834.json"