Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals, and the affected package is org.jenkins-ci.plugins:ldap before 807.809.vd3a. An attacker who controls the configured LDAP server, or can perform a man-in-the-middle attack, can use a referral to an RMI URL to make Jenkins deserialize attacker-controlled data, which can lead to code execution on the Jenkins controller if suitable gadgets are on the classpath. Upgrade to version 807.809.vd3a or later, which no longer follows LDAP referrals.
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 |
|---|---|---|---|---|
| 6.6 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0027, the 20th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:20 UTC First seen by agentprime
- 31 Oct 2026, 14:20 UTC Confirmed by OSV