Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-89066— OS command injection in the task synthesis 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 0.103.0 之前的版本中，任务合成组件中对操作系统命令中使用的特殊元素（如 shell 元字符）未进行适当中和。这可能允许具有上下文的攻击者通过项目配置值或仓库文件名中的 shell 元字符，将其插入到生成的任务定义中，从而在开发者工作站或持续集成（CI）运行器上执行任意命令。 要修复此问题，用户应升级到版本 0.103.0，并重新合成项目，以便使用修正后的任务定义重新生成 文件。仅升级版本并不足够，因为生成的任务定义文件已被提交到仓库中，必须重新生成以应用修复。

CVSS 7.8 · High

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-89066

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
OS command injection in the task synthesis component in projen
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of special elements used in an OS command in the task synthesis component in projen before 0.103.0 might allow context-dependent attackers to execute arbitrary commands on a developer workstation or continuous integration runner via shell metacharacters in project configuration values and repository file names that are interpolated into generated task definitions. To remediate this issue, users should upgrade to version 0.103.0 and then re-synthesize the project so that .projen/tasks.json is regenerated with the corrected task definitions. Upgrading alone is not sufficient because the generated task definition file is committed to the repository.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AWS projen 0 ~ 0.103.0 -

II. Public POCs for CVE-2026-89066

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-89066

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-89066 (2)

Vendor Pages for CVE-2026-89066 (1)

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

CVE-2026-89065 7.1 HIGH Relative path traversal in the generated file manifest cleanup 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-78

V. Comments for CVE-2026-89066

No comments yet

Leave a comment