AWS projen up to 0.101.36 Generated File Manifest Cleanup path traversal

Summaryinfo

A vulnerability marked as problematic has been reported in AWS projen up to 0.101.36. Affected by this issue is some unknown functionality of the component Generated File Manifest Cleanup. This manipulation causes path traversal. The identification of this vulnerability is CVE-2026-89065. The attack can only be executed locally. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in AWS projen up to 0.101.36. It has been declared as problematic. Affected by this vulnerability is an unknown code of the component Generated File Manifest Cleanup. 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. The summary by CVE is:

Relative path traversal in the generated file manifest cleanup component in projen before 0.101.37 might allow context-dependent attackers to recursively delete files and directories outside the project directory that are writable by the environment running projen, via crafted entries in the version-controlled generated file manifest that is consumed during project synthesis. To remediate this issue, users should upgrade to version 0.101.37. The corrected containment check is automatically applied by the projen runtime next time you run it.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-89065 since 09/10/2026. The exploitation appears to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 0.101.37 eliminates this vulnerability.

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Productinfo

Vendor

• AWS

Name

• projen

Version

• 0.101.0
• 0.101.1
• 0.101.2
• 0.101.3
• 0.101.4
• 0.101.5
• 0.101.6
• 0.101.7
• 0.101.8
• 0.101.9
• 0.101.10
• 0.101.11
• 0.101.12
• 0.101.13
• 0.101.14
• 0.101.15
• 0.101.16
• 0.101.17
• 0.101.18
• 0.101.19
• 0.101.20
• 0.101.21
• 0.101.22
• 0.101.23
• 0.101.24
• 0.101.25
• 0.101.26
• 0.101.27
• 0.101.28
• 0.101.29
• 0.101.30
• 0.101.31
• 0.101.32
• 0.101.33
• 0.101.34
• 0.101.35
• 0.101.36

CPE 2.3info

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CPE 2.2info

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