Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Jenkins core (org.jenkins-ci.main:jenkins-core) versions before 2.516.3, from 2.517 up to but not including 2.528, are affected. An attacker without Overall/Read permission can access a page that is meant to be reachable by such users, and its sidepanel executors widget lets them list agent names because no permission check is performed there. Upgrade to 2.516.3 or 2.528; the sidepanel has been removed from the affected view in these releases.
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 |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.050, the 92nd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:17 UTC First seen by agentprime
- 31 Oct 2026, 14:17 UTC Confirmed by OSV