Vulnerability in Yarnpkg Yarn
CVE-2021-4435
An untrusted search path vulnerability was found in Yarn. When a victim runs certain Yarn commands in a directory with attacker-controlled content, malicious commands could be executed in unexpected ways.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Yarnpkg Yarn
- Fedora Extra Packages For Enterprise Linux
- Fedora
- Yarn — versions 1.22.13
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2021-4435 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking)
- github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1 (Patch)
- github.com/yarnpkg/yarn/releases/tag/v1.22.13 (Release Notes)
Frequently asked questions
- What is CVE-2021-4435?
- CVE-2021-4435 is a high-severity vulnerability in Yarnpkg Yarn, classified under Untrusted Search Path. CVSS score: 7.7/10. Published 2024-02-04.
- How severe is CVE-2021-4435?
- High severity. CVSS v3 base score is 7.7 out of 10.