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Vulnerability record · CVE-2026-55180 · published 25 June 2026

CVE-2026-55180: Pnpm information exposure vulnerability

Pnpm · Pnpm

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from repository-controlled .npmrc and pnpm-workspace.yaml into registry request destinations and registry credentials. A malicious repository could cause dependency resolution to send victim environment secrets to an attacker-selected registry before lifecycle scripts run. This vulnerability is fixed in 10.34.2 and 11.5.3.

6.5 CVSS 3.1 Medium EPSS 0.37% · top 71.7% CWE-200 · Information exposureCWE-201 · CWE-201
6.5CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
29 Jun 2026Last modified by NVD

Description

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from repository-controlled .npmrc and pnpm-workspace.yaml into registry request destinations and registry credentials. A malicious repository could cause dependency resolution to send victim environment secrets to an attacker-selected registry before lifecycle scripts run. This vulnerability is fixed in 10.34.2 and 11.5.3.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r ExploitVendor Advisory
https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-55180), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.