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 |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.021, the 81st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:24 UTC First seen by agentprime
- 31 Oct 2026, 15:24 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-qj93-37f5-mr29
- OSV: GHSA-qj93-37f5-mr29
- nvd.nist.gov/vuln/detail/CVE-2021-33318
- github.com/jchristn/IpMatcher/commit/81d77c2f33aa912dbd032b34b9e184fc6e041d89
- github.com/jchristn/IpMatcher
- github.com/jchristn/WatsonWebserver
- github.com/kaoudis/advisories/blob/main/0-2021.md