Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
nginx ignition versions before 0.0.0-20260621194639-0586b4e55ab are affected. An unauthenticated remote attacker can create admin accounts on an instance that has not finished onboarding or had its onboarding reset. Upgrade to 0.0.0-20260621194639-0586b4e55ab and finish onboarding promptly after deployment.
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 |
|---|---|---|---|---|
| 8.1 | High | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0043, the 37th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:12 UTC First seen by agentprime
- 31 Oct 2026, 14:12 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-pxcx-fv34-x9p5
- OSV: GHSA-pxcx-fv34-x9p5
- github.com/lucasdillmann/nginx-ignition/security/advisories/GHSA-pxcx-fv34-x9p5
- nvd.nist.gov/vuln/detail/CVE-2026-61628
- github.com/lucasdillmann/nginx-ignition/pull/131
- github.com/lucasdillmann/nginx-ignition/commit/0586b4e55ab780676d3553a2592979dfa2fb0183
- github.com/lucasdillmann/nginx-ignition
- github.com/lucasdillmann/nginx-ignition/releases/tag/2.41.1