{"id":"CVE-2026-126932","summary":"Zipline 4.6.2 before 4.8.0 Disabled MIME Type Policy Bypass via File Metadata Update","details":"Zipline 4.6.2 before 4.8.0 contains a policy bypass vulnerability that allows authenticated users to evade administrator-disabled MIME types by editing file metadata. Attackers can upload a permitted file, then set a disabled type such as text/html through PATCH /api/user/files/:id so /raw/:id serves that Content-Type.","aliases":["GHSA-rgxm-54cf-whf7"],"modified":"2026-11-14T02:30:37.233924593Z","published":"2026-11-11T22:53:18.142Z","database_specific":{"cwe_ids":["CWE-434"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126932.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126932.json"},{"type":"ADVISORY","url":"https://github.com/diced/zipline/releases/tag/v4.8.0"},{"type":"ADVISORY","url":"https://github.com/diced/zipline/security/advisories/GHSA-rgxm-54cf-whf7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126932"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/zipline-4.6.2-before-4.8.0-disabled-mime-type-policy-bypass-via-file-metadata-update"},{"type":"FIX","url":"https://github.com/diced/zipline/commit/fc8e886ca841b86a3f677cd7dac1bf9a5bd45b2c"},{"type":"ARTICLE","url":"https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/user/files/%5Bid%5D/index.ts#L96"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/diced/zipline","events":[{"introduced":"754c54542eed623eaed88859bcd44f7b06f87586"},{"fixed":"bdee0e7250f7024ff9b4fcdcde71a9ef11a96b6d"},{"fixed":"fc8e886ca841b86a3f677cd7dac1bf9a5bd45b2c"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"4.6.2"},{"fixed":"4.8.0"}]},{"range":[{"fixed":"fc8e886ca841b86a3f677cd7dac1bf9a5bd45b2c"}],"source":"REFERENCES_COMMIT"},{"original_tag":"v4.8.0","range":[{"fixed":"bdee0e7250f7024ff9b4fcdcde71a9ef11a96b6d"}],"source":"REFERENCES_TAG"}]}}],"versions":["v4.7.0","v4.6.5","v4.6.4","v4.6.3","v4.6.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-126932.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}