High 7.1Published Jun 25, 2026

CVE-2026-55700pnpm is a package manager.

Updated under an hour ago (2026-10-19 09:30 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

pnpm is a package manager. From 11.3.0 until 11.5.3, `pnpm stage download` derived a local filename from registry-controlled package name and version fields. A crafted manifest could escape the selected download directory and overwrite another reachable file. The merged fix validates both fields, derives one safe filename, and verifies the final destination before writing. This vulnerability is fixed in 11.5.3.

CVSS: 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Weakness (CWE): CWE-22, CWE-73
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

pnpm pnpm pnpm:pnpm	from 11.3.0 before 11.5.3	NVD

References

https://github.com/pnpm/pnpm/pull/12303patch
https://github.com/pnpm/pnpm/security/advisories/GHSA-v23m-ccfg-pq9hexploit, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.