CVE-2019-15608
MEDIUM5.9EPSS 0.46%TOCTOU Race Condition in Yarn
Published: 2/9/2022Modified: 4/28/2026
Description
The package integrity validation in yarn < 1.19.0 contains a TOCTOU vulnerability where the hash is computed before writing a package to cache. It's not computed again when reading from the cache. This may lead to a cache pollution attack.
Affected packages (2)
- Debian/node-yarnpkgfrom 0, < 1.19.1-1
- npm/yarnfrom 0, < 1.19.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-15608
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-15608
- WEBhttps://github.com/yarnpkg/yarn/blob/master/CHANGELOG.md#1190
- WEBhttps://github.com/yarnpkg/yarn/commit/0474b8c66a8ea298f5e4dedc67b2de464297ad1c
- WEBhttps://hackerone.com/reports/703138