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PUBLISHED

2026-06-25 18:16

MODIFIED

2026-06-25 19:16

CVSS_SCORE V3

7.1

EPSS (Prob. Exploit)

0.42%

Top 64.0%

DATA SOURCES:

NVD 🔗 2026-06-25 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 GITHUB 🔗 2026-11-05 OSV 🔗 2026-10-26

> DESCRIPTION

pnpm is a package manager. From 11.3.0 until 11.5.3, `pnpm stage download` derived a local filename from registry-controlled package name and version fields. A crafted manifest could escape the selected download directory and overwrite another reachable file. The merged fix validates both fields, derives one safe filename, and verifies the final destination before writing. This vulnerability is fixed in 11.5.3.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L

EXPLOITABILITY

2.8

IMPACT

4.2

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
            

Métrique	Valeur	Interprétation
AV (Vecteur d'Attaque) Attack Vector	Network (N)	Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque) Attack Complexity	Low (L)	Peu de conditions requises pour exploiter
PR (Privilèges Requis) Privileges Required	None (N)	Aucune authentification requise
UI (Interaction Utilisateur) User Interaction	Required (R)	Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre) Scope	Unchanged (U)	Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité) Confidentiality Impact	None (N)	Aucune divulgation d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	Low (L)	Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité

None

Aucune divulgation d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

Low

Interruption partielle du service possible

> WEAKNESSES

CWE-22 CWE-73

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. | CWE-73: External Control of File Name or Path - The product allows user input to control or influence paths or file names that are used in filesystem operations.

> GITHUB SECURITY ADVISORY

GHSA-v23m-ccfg-pq9h HIGH

pnpm: `stage download` writes outside its destination directory via manifest name/version traversal

AFFECTED PACKAGES:

NPM / pnpm

>= 11.3.0, < 11.5.3

Fixed in: 11.5.3

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

pnpm: stage download writes outside destination via manifest version traversal

AFFECTED PACKAGES:

Unknown / Unknown

5 versions affected

ALIASES:

GHSA-v23m-ccfg-pq9h

> HISTORIQUE DES MODIFICATIONS

Première apparition

25/06/2026 18:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:59

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that i...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/07/2026 06:01

CWE