Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Jenkins Azure VM Agents Plugin versions before 853.v4a, including 852.v8d35f0960a_43 and earlier, lack permission checks on several HTTP endpoints. An attacker with Overall/Read permission can have Jenkins connect to an attacker-specified Azure Cloud server using attacker-specified credentials IDs obtained elsewhere, and the endpoints also accept non-POST requests, enabling cross-site request forgery. Upgrade to version 853.v4a or later, which requires POST requests and the appropriate permissions on these endpoints.
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 |
|---|---|---|---|---|
| 4.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0050, the 43rd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:11 UTC First seen by agentprime
- 31 Oct 2026, 15:11 UTC Confirmed by OSV