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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-23890— pnpm scoped bin name Path Traversal allows arbitrary file creation outside node_modules/.bin

Quick assessment

Affected
pnpm pnpm
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.

pnpm是pnpm开源的一个包管理器。 pnpm 10.28.1之前版本存在安全漏洞，该漏洞源于二进制链接存在路径遍历，可能导致恶意npm包在node_modules/.bin外创建可执行文件或符号链接。

CVSS 6.5 · Medium EPSS 0.51% · P42

Possible ATT&CK Techniques 2 AI

T1059.004 · Unix Shell T1059.006 · Python
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-23890

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
pnpm scoped bin name Path Traversal allows arbitrary file creation outside node_modules/.bin
Source: CVE Program / CVE List V5
Vulnerability Description
pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's bin linking allows malicious npm packages to create executable shims or symlinks outside of `node_modules/.bin`. Bin names starting with `@` bypass validation, and after scope normalization, path traversal sequences like `../../` remain intact. This issue affects all pnpm users who install npm packages and CI/CD pipelines using pnpm. It can lead to overwriting config files, scripts, or other sensitive files. Version 10.28.1 contains a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5
Vulnerability Title
pnpm 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pnpm是pnpm开源的一个包管理器。 pnpm 10.28.1之前版本存在安全漏洞，该漏洞源于二进制链接存在路径遍历，可能导致恶意npm包在node_modules/.bin外创建可执行文件或符号链接。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pnpm pnpm < 10.28.1 -

II. Public POCs for CVE-2026-23890

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-23890

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-23890 (1)

Same Patch Batch · pnpm · 2026-01-26 · 5 CVEs total

CVE-2026-23888 6.5 MEDIUM pnpm: Binary ZIP extraction allows arbitrary file write via path traversal (Zip Slip)
CVE-2026-23889 6.5 MEDIUM pnpm has Windows-specific tarball Path Traversal
CVE-2026-24056 pnpm has symlink traversal in file:/git dependencies
CVE-2026-24131 pnpm has Path Traversal via arbitrary file permission modification

IV. Related Vulnerabilities

Same product: pnpm
Same vendor: pnpm
Same weakness: CWE-23

V. Comments for CVE-2026-23890

No comments yet

Leave a comment