Improperly Controlled Modification of Dynamically-Determined Object Attributes The advisory has been revoked - it doesn't affect any version of package y18n.src (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-Y18NSRC-15052162
- published22 Jan 2026
- disclosed25 Oct 2020
Introduced: 25 Oct 2020
CVE-2020-7774 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream y18n.src package and not the y18n.src package as distributed by RHEL.
The package y18n before 3.2.2, 4.0.1 and 5.0.5, is vulnerable to Prototype Pollution.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1898680
- https://access.redhat.com/security/cve/CVE-2020-7774
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://github.com/yargs/y18n/issues/96
- https://github.com/yargs/y18n/pull/108
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038306
- https://snyk.io/vuln/SNYK-JS-Y18N-1021887
- https://www.oracle.com/security-alerts/cpuApr2021.html