Search/CVE-2026-53404
● CVE — High

CVE-2026-53404

VendorapacheProducttomcatDiscoveredJun 29, 2026UpdatedOct 25, 2026

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.

CVSS v3.1
7.3 HIGH
EPSS
0.65%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
1
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 26, 2026 → Sep 25, 2026
▲ 0.03pp
0.62% → 0.65% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityLOW
IntegrityLOW
AvailabilityLOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Connections
3 relationships
Timeline
disclosure → media coverage
Jun 29, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 25, 2026
Jul 15, 2026
ubuntu.com reports: USN-8551-1: Tomcat vulnerabilities