High 7.5Published Apr 9, 2026

CVE-2026-29146Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default

Updated under an hour ago (Oct 27, 2026, 6:10 AM ET)

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It affects Apache Software Foundation Apache Tomcat and 8 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache Tomcat

Exploited in the last 30 days

Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.

CVSS: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-209, CWE-642, CWE-1240
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Modified
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Tomcat apache_software_foundation:apache_tomcat (from the name)	from 11.0.0-M1 through 11.0.18; from 10.0.0-M1 through 10.1.52; from 9.0.13 through 9.0.115; from 8.5.38 through 8.5.100; from 7.0.100 through 7.0.109	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 1:10.1.49-3.el10_2 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus	from 1:10.1.36-2.el10_0 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support redhat:rhel_els	from 0:7.0.76-18.el7_9 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service redhat:rhel_tus	from 1:9.0.87-2.el8_8 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions redhat:rhel_e4s	from 1:9.0.87-2.el8_8 not affected	CISA ADP
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus	from 1:9.0.87-4.el9_6 not affected	CISA ADP
Red Hat Red Hat JBoss Web Server 6.2.3 redhat:jboss_enterprise_web_server	6.2	CISA ADP
apache tomcat apache:tomcat	from 7.0.100 through 7.0.109; from 8.5.38 through 8.5.100; from 9.0.13 before 9.0.116; from 10.0.0 before 10.1.53; from 11.0.0 before 11.0.20	NVD

References

References

https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/04/09/24	mailing-list, third-party-advisory
https://access.redhat.com/errata/RHSA-2026:20405
https://access.redhat.com/errata/RHSA-2026:20406
https://access.redhat.com/errata/RHSA-2026:36787
https://access.redhat.com/errata/RHSA-2026:36788
https://access.redhat.com/errata/RHSA-2026:36789
https://access.redhat.com/errata/RHSA-2026:36790
https://access.redhat.com/errata/RHSA-2026:36876
https://access.redhat.com/errata/RHSA-2026:36877
1–10 of 20

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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.