{"cve":"CVE-2021-28860","nvd":{"published":"2021-05-03T12:15:07.467","modified":"2026-07-09T01:16:49.603","status":"Modified","description":"In Node.js mixme, prior to v0.5.1, an attacker can add or alter properties of an object via '__proto__' through the mutate() and merge() functions. The polluted attribute will be directly assigned to every object in the program. This will put the availability of the program at risk causing a potential denial of service (DoS).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","score":9.1},"cwes":["CWE-1321"],"references":["https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028","https://github.com/adaltas/node-mixme/issues/1","https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4","https://security.netapp.com/advisory/ntap-20210618-0005/","https://www.npmjs.com/~david"],"products":["adaltas:mixme"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-28860","score":0.01843,"percentile":0.79018,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-79jw-6wg7-r9g4","url":"https://osv.dev/vulnerability/GHSA-79jw-6wg7-r9g4","summary":"Use of Potentially Dangerous Function in mixme","modified":"2026-09-10T03:49:04.733044773Z","packages":[{"ecosystem":"npm","name":"mixme","purl":"pkg:npm/mixme","ranges":["<0.5.1"],"fixed":["0.5.1"]}]},{"id":"GHSA-r5cq-9537-9rpf","url":"https://osv.dev/vulnerability/GHSA-r5cq-9537-9rpf","summary":"Prototype Pollution in mixme","modified":"2026-09-10T03:49:12.874649745Z","packages":[{"ecosystem":"npm","name":"mixme","purl":"pkg:npm/mixme","ranges":["<0.5.1"],"fixed":["0.5.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}