What’s Vulnerable › Vulnerabilities

CVE-2026-89065: Relative path traversal in the generated file manifest cleanup component in projen

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-11 · updated 2026-09-11
• Weakness: CWE-23

Description

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.

Affected products

• AWS projen: before 0.101.37 — fixed in 0.101.37

How to fix

Upgrade to a fixed version: AWS projen 0.101.37. Check the vendor advisory for mitigations.

References

• https://aws.amazon.com/security/security-bulletins/2026-108-aws/
• https://github.com/projen/projen/releases/tag/v0.101.37
• https://github.com/projen/projen/security/advisories/GHSA-7p65-6x86-v7f3

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