CVE-2026-41293
Apache Tomcat: HTTP/2 request headers not validated
Description
Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Apache Software Foundation
oss-project·USaka apache foundation
apache
oss-project·USaka apache http server, apache httpd
Canonical Ltd.
commercial·GBaka canonical
Сообщество свободного программного обеспечения
oss-projectaka fsf
ООО «Ред Софт»
commercial·RUaka red soft
Red Hat Inc.
commercial·USaka red hat
and 1 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Initial Access
References
https://lists.apache.org/thread/qwg0q16z7xkb2qrr853wdll5531mvl1r
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/05/12/13
openwall.com
https://github.com/advisories/GHSA-r29c-68gh-xp6x
github.com
and 13 more references View all →
News mentions
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