{"id":"CVE-2026-88932","title":"multer is a Node.js middleware for handling multipart/form-data uploads","summary":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup a…","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-459"],"vendor":"Red Hat","product":"Red Hat Developer Hub","affected":["3scale_api_management_platform 2","developer_hub","self_service_automation_portal 2"],"published":"2026-09-14","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:40:00.317","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88932","references":[{"url":"https://cna.openjsf.org/security-advisories.html","label":"ce714d77-add3-4f53-aff5-83d477b104bb"},{"url":"https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34","label":"ce714d77-add3-4f53-aff5-83d477b104bb"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88932.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-88932"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532957"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-88932"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88932"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"epss":0.00314,"epssPercentile":0.24463,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-14T10:28:47.353955Z"},"ingestedAt":"2026-09-14T15:23:07.463Z","slug":"CVE-2026-88932","body":"## Overview\n\nmulter is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Developer Hub, Self-service automation portal 2 · no fix planned: Red Hat Developer Hub, Self-service automation portal 2 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88932.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}