CVE-2025-27625
Jenkins Open Redirect vulnerability
4.3
MEDIUM
CVSS 3.1
EPSS 0.37%
Description
In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (`\`) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.
How to fix CVE-2025-27625
To remediate CVE-2025-27625, upgrade the affected package to a fixed version below.
- —upgrade to 2.504.1 or later
- —upgrade to 2.492.2 or later
Is CVE-2025-27625 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 2.493.0, < 2.504.1
- from 0, < 2.492.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |