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Vulnerability record · CVE-2020-2103 · published 29 January 2020

CVE-2020-2103: Jenkins information exposure vulnerability

Jenkins · Jenkins

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.

5.4 CVSS 3.1 Medium EPSS 7.0% · top 6.0% CWE-200 · Information exposure
5.4CVSS 3.1 base score, v2 4.0
7.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier exposed session identifiers on a user's detail object in the whoAmI diagnostic page.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2020/01/29/1 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHBA-2020:0402
https://access.redhat.com/errata/RHBA-2020:0675
https://access.redhat.com/errata/RHSA-2020:0681
https://access.redhat.com/errata/RHSA-2020:0683
https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1695 Vendor Advisory
http://www.openwall.com/lists/oss-security/2020/01/29/1 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHBA-2020:0402
https://access.redhat.com/errata/RHBA-2020:0675
https://access.redhat.com/errata/RHSA-2020:0681
https://access.redhat.com/errata/RHSA-2020:0683
https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1695 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-2103), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.