6.1

CVE-2026-25854: apache software foundation apache tomcat Open Redirect

CVSS: 6.1v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-25854DEBIAN-CVE-2026-25854CGA-969p-5xmv-fv7p
Published 09-04-2026Last modified 10-04-2026
Open JSON

Vulnerability summary

CVE-2026-25854 is a medium (CVSS 6.1) Open Redirect vulnerability in apache software foundation apache tomcat. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.2% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 19 · Related 11
MGASA-2026-0095OPENSUSE-SU-2026:10547-1OPENSUSE-SU-2026:10548-1OPENSUSE-SU-2026:10549-1OPENSUSE-SU-2026:20595-1OPENSUSE-SU-2026:20611-1

Timeline

  1. 09-04-2026
    PublishedVulnerability first disclosed.
  2. 10-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

8 scores · 7 sources · 2 versions

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

0.00 pp

From 0.53% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard20 products
  • camunda-8.8< 8.8.22-r0
  • camunda-zeebe-8.6< 8.6.39-r0
  • camunda-zeebe-8.7< 8.7.27-r0
  • camunda-zeebe-8.8< 8.8.22-r0
  • kayenta-2025.0< 2025.0.8-r11
Ubuntu4 products
  • tomcat10All versions (No fix recorded)
  • tomcat11All versions (No fix recorded)
  • tomcat8All versions (No fix recorded)
  • tomcat9All versions (No fix recorded)
Debian3 products
  • tomcat10< 10.1.55-1~deb12u1 | < 10.1.55-1~deb13u1 | < 10.1.54-1
  • tomcat11< 11.0.22-1~deb13u1 | < 11.0.21-1
  • tomcat9< 9.0.70-2
Org.apache.tomcat2 products
  • tomcat≥ 8.5.30, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.53 | ≥ 11.0.0-M1, < 11.0.20
  • tomcat-catalina≥ 8.5.30, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.53 | ≥ 11.0.0-M1, < 11.0.20
Wolfi2 products
  • thingsboard-tb-mqtt-transport< 4.3.1.1-r11
  • thingsboard-tb-node< 4.3.1.1-r11
Apache1 product
  • tomcat≥ 9.0.1, < 9.0.116 | ≥ 10.1.0, < 10.1.53 | ≥ 11.0.0, < 11.0.20 | 9.0.0:milestone23 | 9.0.0:milestone24 | 9.0.0:milestone25 | 9.0.0:milestone26 | 9.0.0:milestone27
Apache software foundation1 product
  • apache tomcat≥ 11.0.0-M1, ≤ 11.0.18 | ≥ 10.1.0-M1, ≤ 10.1.52 | ≥ 9.0.0.M23, ≤ 9.0.115 | ≥ 8.5.30, ≤ 8.5.100
Org.apache.tomcat.embed1 product
  • tomcat-embed-core≥ 8.5.30, < 9.0.116 | ≥ 10.1.0-M1, < 10.1.53 | ≥ 11.0.0-M1, < 11.0.20

8 vendors · 34 products

References

8 links