CVE-2021-28860 json
Use of Potentially Dangerous Function in mixme
published 2021-05-03 5 y ago modified 2026-09-10 1 mo ago also CVE-2021-29491 , GHSA-79jw-6wg7-r9g4 , GHSA-r5cq-9537-9rpf , EUVD-2022-1163
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
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).
Patch / fix
- npm mixme 0.5.1
- adaltas mixme 0.5.1
Exploit prediction
1.84% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
| GitHub | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | mixme | <0.5.1 |
0.5.1 |
Classification
References
-
github.com
/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028
web, patch, third-party-advisory
-
github.com
/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4
web, patch, third-party-advisory
-
npmjs.com
/~david
web, third-party-advisory
-
github.com
/adaltas/node-mixme/issues/1
web, issue-tracking, third-party-advisory
-
security.netapp.com
/advisory/ntap-20210618-0005/
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-29491
advisory
-
security.netapp.com
/advisory/ntap-20210622-0002
web
-
nvd.nist.gov
/vuln/detail/CVE-2021-28860
advisory
-
github.com
/adaltas/node-mixme
package
-
security.netapp.com
/advisory/ntap-20210618-0005
web
-
nodejs.com
web
Sources
- CVE List CVE-2021-28860
- GitHub Advisory GHSA-79jw-6wg7-r9g4
- GitHub Advisory GHSA-r5cq-9537-9rpf
- NVD CVE-2021-28860
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.