CVE-2021-4435

Yarn: untrusted search path

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.

Category

7.7
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Third-Party Advisory redhat.com
Affected: n/a yarn
Affected: Fedora Fedora
Affected: Fedora Extra Packages for Enterprise Linux
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2021-4435 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2262284 issue tracking
https://github.com/yarnpkg/yarn/commit/67fcce88935e45092ffa2674c08053f1ef5268a1 patch
https://github.com/yarnpkg/yarn/releases/tag/v1.22.13 release notes

Frequently Asked Questions

What is the severity of CVE-2021-4435?
CVE-2021-4435 has been scored as a high severity vulnerability.
How to fix CVE-2021-4435?
To fix CVE-2021-4435, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4435 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4435 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4435?
CVE-2021-4435 affects n/a yarn, Fedora Fedora, Fedora Extra Packages for Enterprise Linux.
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