cve.bz

CVE-2021-21621

5.3 mediumEPSS 1.2%

Medium (5.3) in jenkins support core. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.plugins:support-core 2.72.1.

Jenkins Support Core Plugin 2.72 and earlier provides the serialized user authentication as part of the "About user (basic authentication details only)" information, which can include the session ID of the user creating the support bundle in some configurations.

Severity

CVSS 3.1

5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE
CWE-200
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-92pg-8g57-hqpxMavenorg.jenkins-ci.plugins:support-core<2.72.12.72.1

References

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