Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.1 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | CNA (EEF) |
- CISA KEV Not listed.
- EPSS 0.0041, the 35th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:25 UTC First seen by agentprime
- 31 Oct 2026, 15:25 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-8c63-r789-xrrf
- OSV: GHSA-8c63-r789-xrrf
- github.com/ZenHive/mpp/security/advisories/GHSA-8c63-r789-xrrf
- cna.erlef.org/cves/CVE-2026-89420.html
- github.com/ZenHive/mpp/commit/82df569c898be1137189e3648e1edb4af6363651
- github.com/ZenHive/mpp/commit/7270edc1dcfb58250cc5ee812876609206564165
- hex.pm/packages/mpp