> CVE-2026-55698 [HIGH]

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PUBLISHED
2026-06-25 18:16
MODIFIED
2026-06-25 18:58
CVSS_SCORE V3
8.8
EPSS (Prob. Exploit)
0.30%
Top 77.6%
DATA SOURCES:
NVD đź”— 2026-06-25 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 GITHUB đź”— 2026-11-05 OSV đź”— 2026-10-26

> DESCRIPTION

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can persist package-manager bootstrap metadata in the first YAML document of pnpm-lock.yaml. Before the patch, direct pnpm execution trusted an already resolved packageManagerDependencies entry when the committed env lockfile contained matching pnpm and @pnpm/exe versions. A malicious repository could therefore commit package-manager lockfile package records and snapshots that bypassed fresh package-manager resolution, then cause pnpm to install and execute bytes selected by that committed lockfile state during automatic version switching. This vulnerability is fixed in 10.34.2 and 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:H/I:H/A:H
EXPLOITABILITY
2.8
IMPACT
5.9

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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)
NĂ©cessite 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
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-345 CWE-494 CWE-829

> CWE DETAILED DESCRIPTIONS

CWE-345: Insufficient Verification of Data Authenticity - The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. | CWE-494: Download of Code Without Integrity Check - The product downloads source code or an executable from a remote location and executes the code without sufficiently verifying the origin and integrity of the code. | CWE-829: Inclusion of Functionality from Untrusted Control Sphere - The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

> GITHUB SECURITY ADVISORY

GHSA-w466-c33r-3gjp HIGH

pnpm: Project env lockfile can short-circuit package-manager resolution and execute lockfile-selected pnpm bytes

AFFECTED PACKAGES:
NPM / pnpm
>= 11.0.0, < 11.5.3
Fixed in: 11.5.3
NPM / pnpm
< 10.34.2
Fixed in: 10.34.2

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

pnpm: Project env lockfile can short-circuit package-manager resolution and execute lockfile-selected pnpm bytes

AFFECTED PACKAGES:
Unknown / Unknown
1193 versions affected
ALIASES:
GHSA-w466-c33r-3gjp

> HISTORIQUE DES MODIFICATIONS

Première apparition
25/06/2026 18:16
Source: NVD
đź“Š ENRICHISSEMENT 01/07/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-345: Insufficient Verification of Data Authenticity - The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. | CWE-494: Downlo...
Total des modifications: 1 Dernière mise à jour: 4 months ago

> REFERENCES

https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp
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