CVE-2026-126932 (GCVE-0-2026-126932)

Vulnerability from cvelistv5 – Published: 2026-11-11 22:53 – Updated: 2026-11-11 22:53
VLAI
Title
Zipline 4.6.2 before 4.8.0 Disabled MIME Type Policy Bypass via File Metadata Update
Summary
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.
Severity
5.3 (Medium)
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
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
diced zipline Affected: 4.6.2 , < 4.8.0 (semver)
Create a notification for this product.
Date Public
2026-09-27 00:00
Credits
Sandipkumar sah
Show details on NVD website
To clipboard 

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



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