Critical

Prototype Pollution in mixme

  • Disclosed: 06.05.2021
  • Updated: 11.10.2026 10:22

Node.js mixme 0.5.0, 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).

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package mixme < 0.5.1 0.5.1

References

CVSS score 9.1/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE)
CWE-913, CWE-1321
Platform
npm
Package
mixme
Disclosed
06.05.2021
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-79jw-6wg7-r9g4 - CC BY 4.0

OSV / GitHub Advisory Database - GHSA-r5cq-9537-9rpf - CC BY 4.0

Vulnerability history: mixme

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
05.2021 09.2021
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 1

Disclosures per year

  1. 2021: 2
  2. 2022: 0
  3. 2023: 0
  4. 2024: 0
  5. 2025: 0
  6. 2026: 0
  1. High ghsa-84p7-fh9c-6g8h < 0.5.2 0.5.2
  2. Prototype Pollution in mixme this entry
    Critical · 9.1 CVE-2021-28860 < 0.5.1 0.5.1

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