{"id":"CVE-2026-126932","state":"PUBLISHED","title":"Zipline 4.6.2 before 4.8.0 Disabled MIME Type Policy Bypass via File Metadata Update","description":"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.","publishedAt":"2026-11-11T22:53:18.142Z","updatedAt":"2026-11-11T22:53:18.142Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["diced zipline"],"affected":[{"vendor":"diced","product":"zipline","packageURL":"pkg:github/diced/zipline","defaultStatus":"unaffected","versions":[{"version":"4.6.2","status":"affected","lessThan":"4.8.0","versionType":"semver"}]}],"references":["https://github.com/diced/zipline/security/advisories/GHSA-rgxm-54cf-whf7","https://github.com/diced/zipline/commit/fc8e886ca841b86a3f677cd7dac1bf9a5bd45b2c","https://github.com/diced/zipline/releases/tag/v4.8.0","https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/user/files/%5Bid%5D/index.ts#L96","https://www.vulncheck.com/advisories/zipline-4.6.2-before-4.8.0-disabled-mime-type-policy-bypass-via-file-metadata-update"],"weaknesses":["CWE-434"],"ingestedAt":"2026-11-11T22:58:06.658Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/126xxx/CVE-2026-126932.json","commit":"dea213d8d205443f279c7b3b37440ceada2a14f9","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-126932","state":"PUBLISHED","datePublished":"2026-11-11T22:53:18.142Z","dateUpdated":"2026-11-11T22:53:18.142Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-11-11T22:45:25.171Z"},"containers":{"cna":{"title":"Zipline 4.6.2 before 4.8.0 Disabled MIME Type Policy Bypass via File Metadata Update","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"diced","product":"zipline","packageURL":"pkg:github/diced/zipline","defaultStatus":"unaffected","versions":[{"version":"4.6.2","status":"affected","lessThan":"4.8.0","versionType":"semver"}]}],"references":[{"url":"https://github.com/diced/zipline/security/advisories/GHSA-rgxm-54cf-whf7","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-rgxm-54cf-whf7)"},{"url":"https://github.com/diced/zipline/commit/fc8e886ca841b86a3f677cd7dac1bf9a5bd45b2c","tags":["patch"]},{"url":"https://github.com/diced/zipline/releases/tag/v4.8.0","tags":["release-notes"],"name":"zipline v4.8.0 Release Notes"},{"url":"https://github.com/diced/zipline/blob/v4.7.0/src/server/routes/api/user/files/%5Bid%5D/index.ts#L96","tags":["technical-description"]},{"url":"https://www.vulncheck.com/advisories/zipline-4.6.2-before-4.8.0-disabled-mime-type-policy-bypass-via-file-metadata-update","name":"VulnCheck Advisory: Zipline 4.6.2 before 4.8.0 Disabled MIME Type Policy Bypass via File Metadata Update","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","lang":"en","description":"Unrestricted Upload of File with Dangerous Type","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-11-11T22:53:18.142Z"},"datePublic":"2026-09-27T00:00:00.000Z","credits":[{"lang":"en","value":"Sandipkumar sah","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}