VULNERABILITY INTELLIGENCE

CVE-2019-15608

CVSS score5.9 MEDIUM
EPSS probability1.84%
CISA KEVNot currently listed
Published2020-03-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Weakness classification

  • support@hackerone.com: CWE-840
  • nvd@nist.gov: CWE-367

Primary references