Vulnerability · Published Feb 18, 2021 · Assigned by snyk
CVE-2020-28499Prototype Pollution
High 7.3
In plain English
A high-severity security flaw in merge. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.4%top 26.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
All versions of package merge are vulnerable to Prototype Pollution via _recursiveMerge .
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | merge | 2.1.1 | GHSA-7wpw-2hjm-89gp |
Affected products (as reported)
References
- https://snyk.io/vuln/SNYK-JS-MERGE-1042987 x_refsource_MISC
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1071049 x_refsource_MISC
- https://github.com/yeikos/js.merge/blob/master/src/index.ts%23L64 x_refsource_MISC