CVE-2026-59976 (GCVE-0-2026-59976)

Vulnerability from cvelistv5 – Published: 2026-10-12 18:36 – Updated: 2026-10-12 18:36
VLAI
Title
ConvertX: Path Traversal vulnerability leading to Arbitrary File Write
Summary
ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the ImageMagick converter uses the unsanitized convert_to parameter to construct an output path. If an authenticated user, or an unauthenticated user when ConvertX is configured to allow unauthenticated access, uploads an extensionless image and supplies directory traversal sequences in convert_to through /convert, the constructed path escapes the intended output directory, allowing the attacker to write converted output to arbitrary container paths, potentially overwriting files or causing denial of service. This issue is fixed in version 0.18.0.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-73 - External Control of File Name or Path
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7566 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
C4illin ConvertX Affected: < 0.18.0
guessed Create a notification for this product.
Show details on NVD website
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        {
          "product": "ConvertX",
          "vendor": "C4illin",
          "versions": [
            {
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          "value": "ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the ImageMagick converter uses the unsanitized convert_to parameter to construct an output path. If an authenticated user, or an unauthenticated user when ConvertX is configured to allow unauthenticated access, uploads an extensionless image and supplies directory traversal sequences in convert_to through /convert, the constructed path escapes the intended output directory, allowing the attacker to write converted output to arbitrary container paths, potentially overwriting files or causing denial of service. This issue is fixed in version 0.18.0."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
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            "baseScore": 8.1,
            "baseSeverity": "HIGH",
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            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
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              "description": "CWE-73: External Control of File Name or Path",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-12T18:36:12.583Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/C4illin/ConvertX/security/advisories/GHSA-pvqw-vc5x-266j",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/C4illin/ConvertX/security/advisories/GHSA-pvqw-vc5x-266j"
        },
        {
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          "tags": [
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        },
        {
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          "tags": [
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          "url": "https://github.com/C4illin/ConvertX/commit/0965928949319e2839770fbf57a8337440d42630"
        },
        {
          "name": "https://github.com/C4illin/ConvertX/releases/tag/v0.18.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/C4illin/ConvertX/releases/tag/v0.18.0"
        }
      ],
      "source": {
        "advisory": "GHSA-pvqw-vc5x-266j",
        "discovery": "UNKNOWN"
      },
      "title": "ConvertX: Path Traversal vulnerability leading to Arbitrary File Write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59976",
    "datePublished": "2026-10-12T18:36:12.583Z",
    "dateReserved": "2026-07-07T19:41:00.004Z",
    "dateUpdated": "2026-10-12T18:36:12.583Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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                "vendor": "C4illin",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 0.18.0"
                  }
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            ],
            "source": "security-advisories@github.com"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "ConvertX is a self-hosted file conversion service. Prior to 0.18.0, the ImageMagick converter uses the unsanitized convert_to parameter to construct an output path. If an authenticated user, or an unauthenticated user when ConvertX is configured to allow unauthenticated access, uploads an extensionless image and supplies directory traversal sequences in convert_to through /convert, the constructed path escapes the intended output directory, allowing the attacker to write converted output to arbitrary container paths, potentially overwriting files or causing denial of service. This issue is fixed in version 0.18.0."
          }
        ],
        "id": "CVE-2026-59976",
        "lastModified": "2026-10-12T19:16:39.260",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
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        "references": [
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            "url": "https://github.com/C4illin/ConvertX/commit/0965928949319e2839770fbf57a8337440d42630"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/C4illin/ConvertX/pull/532"
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          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/C4illin/ConvertX/releases/tag/v0.18.0"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/C4illin/ConvertX/security/advisories/GHSA-pvqw-vc5x-266j"
          }
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        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
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                "value": "CWE-22"
              },
              {
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            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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