Prototype Pollution in Oracle Graalvm
CVE-2020-7774
The package y18n before 3.2.2, 4.0.1 and 5.0.5, is vulnerable to Prototype Pollution.
Vulnerability class: Prototype Pollution
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.696 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.694 · newest: 0.696 · change: +0.002
Affected products
- Oracle Graalvm — versions 19.3.5, 20.3.1.2, 21.0.0.2
- Siemens Sinec Infrastructure Network Services
- Y18n Project — versions 4.0.0
- Y18n — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-Y18N-1021887 (Exploit, Third Party Advisory)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038306 (Exploit, Third Party Advisory)
- github.com/yargs/y18n/pull/108 (Patch, Third Party Advisory)
- github.com/yargs/y18n/issues/96 (Exploit, Third Party Advisory)
- www.oracle.com/security-alerts/cpuApr2021.html (Patch, Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7774?
- CVE-2020-7774 is a high-severity vulnerability in Oracle Graalvm, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.3/10. Published 2020-11-17.
- How severe is CVE-2020-7774?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2020-7774 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.