UpHeron
All vulnerabilities

Servers and applications

CVE-2021-21606

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier improperly validates the format of a provided fingerprint ID when checking for its existence allowing an attacker to check for the existence of XML files with a short path.

Severity
Medium 4.3
Published
13 Jan 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
JenkinsServers and applications · cpe:a:jenkins:jenkins
  • Every version up to 2.263.1
  • Every version up to 2.274

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-21606
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-21606