CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2020-2101
Medium (5.3) in jenkins jenkins. EPSS 1.4% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.main:jenkins-core 2.204.2, 2.219.
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
- CWE
- CWE-203
- Published
- Modified
- Record from
- the NVD, synced
Affected
- jenkins:jenkins
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-w7jr-wqw6-54xc | Maven | org.jenkins-ci.main:jenkins-core | <2.204.2 | 2.204.2 |
| GHSA-w7jr-wqw6-54xc | Maven | org.jenkins-ci.main:jenkins-core | >=2.205 <2.219 | 2.219 |