VulnerabilityModified
CVE-2021-4435
An untrusted search path vulnerability was found in Yarn.
HIGH 7.8EPSS 0.30%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.30% probability · 23th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-426
- Affected
- yarnpkg/yarn
- Source
- patrick@puiterwijk.org
References
- https://access.redhat.com/security/cve/CVE-2021-4435Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2262284Issue Tracking
- https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1Patch
- https://github.com/yarnpkg/yarn/releases/tag/v1.22.13Release Notes
- https://access.redhat.com/security/cve/CVE-2021-4435Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2262284Issue Tracking
- https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1Patch
- https://github.com/yarnpkg/yarn/releases/tag/v1.22.13Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.