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

Quick assessment

Affected
AWS projen
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 projen 0.101.37 之前的版本中，生成的文件清单清理组件存在相对路径遍历漏洞。该漏洞可能允许依赖上下文的攻击者通过向版本控制的生成文件清单（该清单在合成项目时被使用）中植入特制条目，从而递归删除项目目录之外、且可被运行 projen 的环境写入的文件和目录。 要修复此问题，用户应升级至 0.101.37 版本。修正后的范围检查（containment check）将在下次运行 projen 时由 projen 运行时自动应用。

CVSS 7.1 · High
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I. Basic Information for CVE-2026-89065

Vulnerability Information
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Vulnerability Title
Relative path traversal in the generated file manifest cleanup component in projen
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AWS projen 0 ~ 0.101.37 -

II. Public POCs for CVE-2026-89065

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III. Intelligence Information for CVE-2026-89065

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Vendor Advisories for CVE-2026-89065 (2)

Vendor Pages for CVE-2026-89065 (1)

Same Patch Batch · AWS · 2026-09-11 · 4 CVEs total

CVE-2026-89066 7.8 HIGH OS command injection in the task synthesis component in projen
CVE-2026-18061 5.9 MEDIUM Improper Restriction of XML External Entity References in AWS Advanced JDBC Wrapper Remote
CVE-2026-89090 5.9 MEDIUM Denial of service in the event stream header decoder in AWS SDK for Go v2

IV. Related Vulnerabilities

Same product: projen
Same vendor: AWS
Same weakness: CWE-23

V. Comments for CVE-2026-89065

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