The name returned for an uploaded file is the filename parameter of the part's Content-Disposition header, unchanged.
An application that saves the upload under this name can be made to write outside the intended directory.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| unaffected |
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Vendor Solution
Upgrade to CGI 5.00 or later.
Vendor Workaround
For deployments that cannot upgrade, do not use the client-supplied upload filename as a path.
Tracking
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Wed, 04 Nov 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | CGI versions before 5.00 for Perl return upload filenames with any client-supplied path, including ../ and Windows paths. The name returned for an uploaded file is the filename parameter of the part's Content-Disposition header, unchanged. An application that saves the upload under this name can be made to write outside the intended directory. | |
| Title | CGI versions before 5.00 for Perl return upload filenames with any client-supplied path, including ../ and Windows paths | |
| Weaknesses | CWE-22 | |
| References |
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-11-03T23:40:36.961Z
Reserved: 2026-11-02T17:42:19.176Z
Link: CVE-2026-120641
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-11-04T00:17:25.527
Modified: 2026-11-04T00:17:25.527
Link: CVE-2026-120641
Redhat
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OpenCVE Enrichment
No data.
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CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')