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CVE-2026-50573— pnpm: Unsafe default behavior breaks integrity check

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团队开源的一个包管理器。 pnpm 10.33.4之前版本和11.0.0版本至11.4.0之前版本存在输入验证错误漏洞，该漏洞源于pnpm install在非冻结模式下解包完整性验证缺陷，可能导致下载的tarball与锁文件中记录的完整性不匹配时仍接受新的远程包内容。

CVSS 6.8 · Medium EPSS 0.17% · P5

Possible ATT&CK Techniques 1 AI

T1195.002 · Compromise Software Supply Chain

Affected Version Matrix 2

VendorProduct Version RangeStatus
pnpm pnpm < 10.33.4 affected
>= 11.0.0, < 11.4.0 affected
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I. Basic Information for CVE-2026-50573

Vulnerability Information
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Vulnerability Title
pnpm: Unsafe default behavior breaks integrity check
Source: CVE Program / CVE List V5
Vulnerability Description
pnpm is a package manager. Prior to 10.34.0 and 11.4.0, `pnpm install` in non-frozen mode can accept new remote package content after detecting that the downloaded tarball does not match the integrity recorded in pnpm-lock.yaml. When a package is already locked with an integrity value, and the registry later serves different metadata and tarball content for the same package name and version, pnpm initially reports an integrity mismatch. However, plain pnpm install then performs a resolution repair, accepts the registry's new integrity, updates the lockfile, installs the new content, and exits successfully. This means the lockfile integrity check does not act as a hard stop by default. This vulnerability is fixed in 10.34.0 and 11.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
pnpm 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pnpm是pnpm团队开源的一个包管理器。 pnpm 10.33.4之前版本和11.0.0版本至11.4.0之前版本存在输入验证错误漏洞，该漏洞源于pnpm install在非冻结模式下解包完整性验证缺陷，可能导致下载的tarball与锁文件中记录的完整性不匹配时仍接受新的远程包内容。
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 < 10.33.4 -

II. Public POCs for CVE-2026-50573

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III. Intelligence Information for CVE-2026-50573

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Vendor Advisories for CVE-2026-50573 (1)

Same Patch Batch · pnpm · 2026-06-25 · 13 CVEs total

CVE-2026-50016 8.8 HIGH pnpm: Transitive dependency alias path traversal allows project path override via symlink
CVE-2026-55698 8.8 HIGH pnpm: Project env lockfile can short-circuit package-manager resolution and execute lockfi
CVE-2026-55487 7.5 HIGH pnpm: manifest identity spoof satisfies allowBuilds and runs attacker lifecycle
CVE-2026-55697 7.5 HIGH pnpm: Repository-controlled configDependencies can select a pacquet native install engine
CVE-2026-50015 7.3 HIGH pnpm: Arbitrary File Write/Delete via Malicious Patch File (Path Traversal)
CVE-2026-55700 7.1 HIGH pnpm: stage download writes outside destination via manifest version traversal
CVE-2026-50021 6.8 MEDIUM pnpm: Integrity Check Bypass via Missing Lockfile Integrity Field
CVE-2026-55180 6.5 MEDIUM pnpm: Repository config can expand victim environment secrets into registry requests befor
CVE-2026-55699 6.5 MEDIUM pnpm: reserved bin name deletes PNPM_HOME during global remove
CVE-2026-50014 6.4 MEDIUM pnpm: Git Fetch Argument Injection via Lockfile resolution.commit
CVE-2026-48995 pnpm: Tarball hash of GitHub git dependencies is not stored in lockfile
CVE-2026-50017 pnpm binds unscoped user-level npm auth credentials to a repository-selected registry

IV. Related Vulnerabilities

Same product: pnpm
Same vendor: pnpm
Same weakness: CWE-345

V. Comments for CVE-2026-50573

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