High severity · published Sep 11, 2026
CVE-2026-89065
Relative path traversal in the generated file manifest cleanup component in projen
7.1
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
projen · AWS
before 0.101.37 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89065
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89065
aws.amazon.com
https://aws.amazon.com/security/security-bulletins/2026-108-aws/
github.com
https://github.com/projen/projen/releases/tag/v0.101.37
github.com
https://github.com/projen/projen/security/advisories/GHSA-7p65-6x86-v7f3
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