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CVE-2026-55180

MEDIUM Exploitation: PoC
6.5
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-55180
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-16 15:20 UTC
Published
2026-06-25 17:00 UTC
Last updated
2026-06-25 17:58 UTC
Primary CWE
CWE-200
CWE-200: Exposure of Sensitive Information to an Unauthorize…
Vendor / Product
pnpm / pnpm
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
pnpm pnpm — < 10.34.2, >= 11.0.0, < 11.5.3
Weakness (CWE)
CWESourceDescription
CWE-200 cna CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-201 cna CWE-201: Insertion of Sensitive Information Into Sent Data
CWE-522 cna CWE-522: Insufficiently Protected Credentials
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
References (1)
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