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Security Advisories

CVE-2019-15608

NVD

https://nvd.nist.gov/vuln/detail/CVE-2019-15608

Severity

5.9

Medium

CVSS V3

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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.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2019-15608
  • https://github.com/advisories/GHSA-hjxc-462x-x77j
  • https://github.com/yarnpkg/yarn/blob/master/CHANGELOG.md#1190
  • https://github.com/yarnpkg/yarn/commit/0474b8c66a8ea298f5e4dedc67b2de464297ad1c
  • https://hackerone.com/reports/703138

Affected packages

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