{"id":"CVE-2026-86018","title":"Part-DB: Authenticated Disk Exhaustion via Unbounded Server-Side Attachment Downloads","summary":"Part-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB allows authenticated users to bypass the configured maximum attachment file size when using the server-side “Download exter…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-400","CWE-770"],"vendor":"Part-DB","product":"Part-DB-server","affected":["Part-DB-server < 2.13.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-29T02:47:22.549895Z"},"exploitAvailable":true,"published":"2026-10-23","updated":"2026-10-29","sourceUpdated":"2026-10-29T02:47:47.732Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-86018","references":[{"url":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-2whx-2cx7-qvq6","label":"https://github.com/Part-DB/Part-DB-server/security/advisories/GHSA-2whx-2cx7-qvq6"},{"url":"https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.2","label":"https://github.com/Part-DB/Part-DB-server/releases/tag/v2.13.2"}],"tags":["cve.org","exploit-available"],"epss":0.00405,"epssPercentile":0.34777,"ingestedAt":"2026-10-23T05:16:21.505Z","slug":"CVE-2026-86018","body":"## Overview\n\nPart-DB is an open source inventory management system for electronic components. Prior to version 2.13.2, Part-DB allows authenticated users to bypass the configured maximum attachment file size when using the server-side “Download external file” attachment feature. When server-side attachment downloads are enabled, Part-DB downloads the remote file and streams it directly to disk without enforcing the configured MAX_ATTACHMENT_FILE_SIZE limit. As a result, an authenticated user who can create or edit attachments can cause Part-DB to store files larger than the configured maximum attachment size, potentially exhausting disk space and causing a denial of service. This issue has been patched in version 2.13.2.\n\n## Affected\n\n- `Part-DB-server < 2.13.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":231407,"id":"CVE-2026-86018","ts":1793412950903,"field":"exploit_available","old":"false","new":"true"}]}