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CVE-2026-50015

Pnpm path traversal

7.3 HIGHPublic exploitEPSS 0.43%
  1. Published25 Jun 2026

Description

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm's patch application pipeline (@pnpm/patch-package) performs no path validation on file paths extracted from .patch files. An attacker who contributes a malicious patch file via a pull request can write attacker-controlled content to or delete arbitrary files on the filesystem during pnpm install, as the user running the install. The diff --git header paths containing ../../ sequences traverse out of the package directory, and the traversal is difficult to catch in code review because patch file diff headers are opaque to most reviewers. This vulnerability is fixed in 10.34.0 and 11.4.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

Affected products

Pnpm≥ 11.0.0 < 11.4.0 · < 10.34.0

Remediation

Fixed in
Pnpm≥ 11.4.0

References

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Frequently asked

Is CVE-2026-50015 being actively exploited?

CVE-2026-50015 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.43%.

How severe is CVE-2026-50015?

CVE-2026-50015 has a CVSS 3.1 base score of 7.3, rated high. EPSS estimates a 0.43% probability of exploitation.

Which products are affected by CVE-2026-50015?

Affected products include Pnpm.

How do I fix CVE-2026-50015?

Upgrade affected software to a fixed version, for example Pnpm 11.4.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-50015 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.