CVE-2019-10773
CVSS v3
7.8
HIGH
EPSS Score
1.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.
Technical details
- Published
- 2019-12-16
Frequently asked questions
What is CVE-2019-10773?
In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.
Is CVE-2019-10773 actively exploited?
Active exploitation of CVE-2019-10773 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-10773?
CVE-2019-10773 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2019-10773 affecting your environment?
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