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CVE-2020-2102
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.
Medium5.3EPSS 1.4%
- Published
- Updated
- Reserved
- Assigned by
- jenkins
Description
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.4% · top 27% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
- affected unspecified – ≤ 2.218
- affected unspecified – ≤ LTS 2.204.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.jenkins-ci.main:jenkins-coreGHSA-fj6f-6933-839j (opens in a new tab)
References (6)
- https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1660 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20200129 Multiple vulnerabilities in Jenkins and Jenkins plugins (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2020:0681 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2020:0683 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHBA-2020:0402 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHBA-2020:0675 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-fj6f-6933-839j (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2020-2102)Record last updated .