CVE-2021-39134
- Source
- https://cve.org/CVERecord?id=CVE-2021-39134
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39134.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-39134
- Aliases
- Downstream
- Related
- Published
- 2021-08-31T17:15:08.147Z
- Modified
- 2026-03-15T14:10:19.627389Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
@npmcli/arborist, the library that calculates dependency trees and manages thenode_modulesfolder hierarchy for the npm command line interface, aims to guarantee that package dependency contracts will be met, and the extraction of package contents will always be performed into the expected folder. This is, in part, accomplished by resolving dependency specifiers defined inpackage.jsonmanifests for dependencies with a specific name, and nesting folders to resolve conflicting dependencies. When multiple dependencies differ only in the case of their name, Arborist's internal data structure saw them as separate items that could coexist within the same level in thenode_moduleshierarchy. However, on case-insensitive file systems (such as macOS and Windows), this is not the case. Combined with a symlink dependency such asfile:/some/path, this allowed an attacker to create a situation in which arbitrary contents could be written to any location on the filesystem. For example, a packagepwn-acould define a dependency in theirpackage.jsonfile such as"foo": "file:/some/path". Another package,pwn-bcould define a dependency such asFOO: "file:foo.tgz". On case-insensitive file systems, ifpwn-awas installed, and thenpwn-bwas installed afterwards, the contents offoo.tgzwould be written to/some/path, and any existing contents of/some/pathwould be removed. Anyone using npm v7.20.6 or earlier on a case-insensitive filesystem is potentially affected. This is patched in @npmcli/arborist 2.8.2 which is included in npm v7.20.7 and above. - References
Affected packages
Git / github.com/graalvm/graalvm-ce-builds
Affected ranges
- Type
- GIT
- Repo
- https://github.com/graalvm/graalvm-ce-builds
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "0" }, { "last_affected": "20.3.3" } ] }