Description
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.
Published: 2026-10-12
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
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Remediation

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History

Tue, 13 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 12 Oct 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared C4illin
C4illin convertx
Vendors & Products C4illin
C4illin convertx

Mon, 12 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title ConvertX: Path Traversal vulnerability leading to Arbitrary File Write
Weaknesses CWE-22
CWE-73
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'}


Subscriptions

C4illin Convertx
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-13T16:34:38.483Z

Reserved: 2026-07-07T19:41:00.004Z

Link: CVE-2026-59976

cve-icon Vulnrichment

Updated: 2026-10-13T16:34:20.272Z

cve-icon NVD

Status : Received

Published: 2026-10-12T19:16:39.260

Modified: 2026-10-13T17:17:42.563

Link: CVE-2026-59976

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-12T21:30:17Z

Weaknesses