CVE-2026-55697

pnpm: Repository-controlled configDependencies can select a pacquet native install engine

HIGH
8.8
CVSS Score
Published: June 25, 2026 at 04:42 PM UTC
Updated: July 1, 2026 at 11:22 PM UTC
1 product affected across 1 vendorPnpm

Using pnpm by pnpm?

Get instant alerts when new vulnerabilities affect pnpm - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can install configDependencies declared in pnpm-workspace.yaml before command dispatch. Before the patch, a repository could declare pacquet or @pnpm/pacquet as a config dependency and pnpm treated that repository-controlled dependency as an install-engine opt-in. During install, pnpm resolved a platform-specific @pacquet/<platform>-<arch>/pacquet binary from node_modules/.pnpm-config/<packageName> and spawned it as the developer or CI user. This vulnerability is fixed in 10.34.2 and 11.5.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.34.2v < 11.5.311.0.0 ≤ v < 11.5.3
Affected range stops below 10.34.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.5.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMExploitVendor Advisory
Source: cverecord
https://github.com/pnpm/pnpm/security/advisories/GHSA-gj8w-mvpf-x27x

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78CWE-494CWE-829

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card