tensorchord envd up to 1.3.5 Python Package Installation install.python_packages requirements path traversal

Summaryinfo

A vulnerability, which was classified as problematic, has been found in tensorchord envd up to 1.3.5. Affected is the function install.python_packages of the component Python Package Installation. The manipulation of the argument requirements leads to path traversal. This vulnerability is traded as CVE-2026-128079. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in tensorchord envd up to 1.3.5. This issue affects the function install.python_packages of the component Python Package Installation. The manipulation of the argument requirements with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality. The summary by CVE is:

envd provides reproducible development environments for humans and agents. In versions starting with 0.3.38 and before 1.3.6, insufficient containment of host-side requirements-file reads in  install.python_packages(requirements=...)  could allow access to files outside the build context. An attacker able to influence build input could cause file contents interpreted as dependency entries to appear in debug logs or build-step metadata, subject to the envd process’s permissions. Exploitation in version 1.3.5 additionally requires concurrent modification of relevant filesystem paths. This issue is fixed in version 1.3.6.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-128079 since 11/12/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 1.3.6 eliminates this vulnerability.

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Productinfo

Vendor

• tensorchord

Name

• envd

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3
• 1.3.4
• 1.3.5

Website

• Product: https://github.com/tensorchord/envd/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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