{"id":"CVE-2026-107834","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, the multipart loop in internal/bodyprocessors/multipart.go executes defer temp.Close() for every uploaded file part, so each te…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400","CWE-772"],"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":"2026-10-09T18:17:05.007","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107834","references":[{"url":"https://github.com/corazawaf/coraza/commit/1bc39036e99c88e7de60cf8e6bb55ee4c311223c","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-rp9v-7xv3-r6g3","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-rp9v-7xv3-r6g3"}],"tags":["nvd","ghsa","go"],"aliases":["GHSA-rp9v-7xv3-r6g3"],"ecosystem":"go","ingestedAt":"2026-10-09T18:07:39.420Z","slug":"CVE-2026-107834","body":"## Overview\n\nOWASP 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-107834)\n\nAffected packages:\n\n- `github.com/corazawaf/coraza/v3 >= 3.0.0, < 3.8.0`\n\nPatched in:\n\n- `github.com/corazawaf/coraza/v3 3.8.0`\n\nSource: https://github.com/advisories/GHSA-rp9v-7xv3-r6g3","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}