UpHeron
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Servers and applications

CVE-2026-25854

Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected Users are recommended to upgrade to version 11.0.20, 10.1.53…

Severity
Medium 6.1
Published
9 Apr 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
9.0.116, 10.1.53, 11.0.20
Sources
NVD

Affected software

SoftwareAffected versions
Apache TomcatServers and applications · cpe:a:apache:tomcat
  • From 11.0.0 before 11.0.20
  • From 10.1.0 before 10.1.53
  • From 9.0.1 before 9.0.116
  • Version 9.0.0-milestone27
All 8 release lines
  • Version 9.0.0-milestone23
  • Version 9.0.0-milestone24
  • Version 9.0.0-milestone25
  • Version 9.0.0-milestone26
  • Version 9.0.0-milestone27
  • From 9.0.1 before 9.0.116
  • From 10.1.0 before 10.1.53
  • From 11.0.0 before 11.0.20

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-25854
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-25854