High severity7.8NVD Advisory· Published Dec 16, 2019· Updated Jun 17, 2026
CVE-2019-10773
CVE-2019-10773
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
yarnnpm | < 1.22.0 | 1.22.0 |
Affected products
5- Yarn/Yarndescription
- osv-coords3 versions
< 1.21.1-r0+ 2 more
- (no CPE)range: < 1.21.1-r0
- (no CPE)range: < 1.21.1-r0
- (no CPE)range: < 1.22.0
Patches
Vulnerability mechanics
References
14- github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7nvdPatchThird Party AdvisoryWEB
- blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/nvdExploitThird Party Advisory
- github.com/yarnpkg/yarn/issues/7761nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-5xf4-f2fq-f69jghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2019-10773ghsaADVISORY
- access.redhat.com/errata/RHSA-2020:0475nvdWEB
- blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarnghsaWEB
- github.com/yarnpkg/yarn/pull/7755ghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5ghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBIghsaWEB
- snyk.io/vuln/SNYK-JS-YARN-537806,ghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/nvd
- snyk.io/vuln/SNYK-JS-YARN-537806%2Cnvd
News mentions
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