CVE-2026-55700

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Source
https://cve.org/CVERecord?id=CVE-2026-55700
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55700.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55700
Aliases
Downstream
Published
2026-06-25T16:47:21.488Z
Modified
2026-07-15T01:49:14.676864879Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L CVSS Calculator
Summary
pnpm: stage download writes outside destination via manifest version traversal
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55700.json",
    "cwe_ids": [
        "CWE-22",
        "CWE-73"
    ]
}
References

Affected packages

Git / github.com/pnpm/pnpm

Affected ranges

Type
GIT
Repo
https://github.com/pnpm/pnpm
Events
Introduced
f2a4d2caef2c8ee5338232196559bfcc7d7007d1
Fixed
b7195db5c8469c80908d625c648302b26c2f9977
Database specific 
{
    "cpe": "cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "11.3.0"
        },
        {
            "fixed": "11.5.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

v11.*
v11.3.0
v11.4.0
v11.5.0
v11.5.1
v11.5.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55700.json"