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CVE-2026-55697

Pnpm command injection

7.5 HIGHPublic exploitEPSS 0.19%
  1. Published25 Jun 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Pnpm≥ 11.0.0 < 11.5.3 · < 10.34.2

Remediation

Fixed in
Pnpm≥ 11.5.3

References

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Frequently asked

Is CVE-2026-55697 being actively exploited?

CVE-2026-55697 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.19%.

How severe is CVE-2026-55697?

CVE-2026-55697 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.19% probability of exploitation.

Which products are affected by CVE-2026-55697?

Affected products include Pnpm.

How do I fix CVE-2026-55697?

Upgrade affected software to a fixed version, for example Pnpm 11.5.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-55697 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.