CVE-2026-25854
Description
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 or 9.0.116, which fix the issue.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 9.0.70-2 |
| sid | Fixed | 10.1.54-1 |
| forky | Fixed | 10.1.54-1 |
| bullseye | Fixed | 9.0.70-2 |
| bookworm | Fixed | 9.0.70-2 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat-catalina | >=8.5.30,<9.0.116 | 9.0.116 |
| Maven | org.apache.tomcat:tomcat-catalina | >=10.1.0-M1,<10.1.53 | 10.1.53 |
| Maven | org.apache.tomcat:tomcat-catalina | >=11.0.0-M1,<11.0.20 | 11.0.20 |
| Maven | org.apache.tomcat:tomcat | >=8.5.30,<9.0.116 | 9.0.116 |
| Maven | org.apache.tomcat:tomcat | >=10.1.0-M1,<10.1.53 | 10.1.53 |
| Maven | org.apache.tomcat:tomcat | >=11.0.0-M1,<11.0.20 | 11.0.20 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=8.5.30,<9.0.116 | 9.0.116 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=10.1.0-M1,<10.1.53 | 10.1.53 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=11.0.0-M1,<11.0.20 | 11.0.20 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-25854
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/ghct3b6o74bp2vm7q875s1zh0dqrz3h0
- http://www.openwall.com/lists/oss-security/2026/04/09/21
- https://www.suse.com/security/cve/CVE-2026-25854.html
- https://security-tracker.debian.org/tracker/CVE-2026-25854
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.