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CVE-2026-55699

MEDIUM Exploitation: PoC
6.5
CVSS 3.1
Description
pnpm is a package manager. Prior to 10.34.2 and 11.5.3, Manifest bin object keys such as "", ".", and ".." passed pnpm's bin-name guard. When a malicious package was installed globally, later global remove, update, or add-replacement flows could re-derive those names from the installed manifest and pass path.join(globalBinDir, binName) to removeBin. For "." this targets the global bin directory; for ".." this targets its parent. This vulnerability is fixed in 10.34.2 and 11.5.3.

Metadata

CVE ID
CVE-2026-55699
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-17 00:13 UTC
Published
2026-06-25 16:44 UTC
Last updated
2026-06-25 17:54 UTC
Primary CWE
CWE-22
CWE-22: Improper Limitation of a Pathname to a Restricted Di…
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:N/I:N/A:H
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-22 cna CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73 cna CWE-73: External Control of File Name or Path
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References (1)
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