GOVCERT-LU eml_parser up to 2.0.0 Eml File Parser recursively_extract_attachments.py path traversal

Summaryinfo

A vulnerability, which was classified as critical, was found in GOVCERT-LU eml_parser up to 2.0.0. This impacts the function eml_parser of the file examples/recursively_extract_attachments.py of the component Eml File Parser. Executing a manipulation can lead to path traversal. This vulnerability is handled as CVE-2026-29780. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GOVCERT-LU eml_parser up to 2.0.0. It has been declared as critical. This vulnerability affects the function eml_parser of the file examples/recursively_extract_attachments.py of the component Eml File Parser. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect integrity, and availability. CVE summarizes:

eml_parser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to version 2.0.1, the official example script examples/recursively_extract_attachments.py contains a path traversal vulnerability that allows arbitrary file write outside the intended output directory. Attachment filenames extracted from parsed emails are directly used to construct output file paths without any sanitization, allowing an attacker-controlled filename to escape the target directory. This issue has been patched in version 2.0.1.

The advisory is available at github.com. This vulnerability was named CVE-2026-29780 since 03/04/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 2.0.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• GOVCERT-LU

Name

• eml_parser

Version

• 2.0

Website

• Product: https://github.com/GOVCERT-LU/eml_parser/

CPE 2.3info

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CPE 2.2info

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