CVE-2019-10773
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductYarn
PublishedDec 16, 2019
First seenDec 16, 2019
How to fix
Update
- yarnpkg yarn1.21.1 or later
- yarn1.22.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| yarnpkg yarn | v < 1.21.1 | 1.21.1 |
| yarnnpm | v < 1.22.0 | 1.22.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
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