Medium [CVE-2026-55180] pnpm and pacquet: Information disclosure of environment secrets via improper environment variable expansion
This medium-severity Red Hat Linux advisory covers CVE-2026-55180 affecting Red Hat AMQ Broker 7, Red Hat Build of Keycloak, Red Hat JBoss Enterprise Application Platform 8.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
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.
A malicious repository could exploit this vulnerability by crafting specific.npmrc or pnpm-workspace.yaml files. When these package managers process these files, they improperly expand environment variable placeholders, leading to the disclosure of sensitive victim environment secrets to an attacker-controlled registry.
This could result in unauthorized access to confidential information. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N).
Weakness: CWE-15. Affected Red Hat products: Red Hat AMQ Broker 7; Red Hat Build of Keycloak; Red Hat JBoss Enterprise Application Platform 8; Red Hat JBoss Enterprise Application Platform Expansion Pack.
Red Hat does not currently list a fixing RHSA for this CVE.
Is CVE-2026-55180 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-55180 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-55180?
Upgrade to a fixed release named by Red Hat:
- 10.34.2
- 11.5.3
Confirm against the vendor advisory before you patch.
- < 10.34.2
- < 11.5.3
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
- 10.34.2
- 11.5.3
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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