RHSA-2026:39188: jws7-tomcat security update

RHSA-2026:39188, released July 18, 2026, fixes 10 CVEs in jws7-tomcat (version 11.0.21-5.redhat_00004.1.el10jws). One of them is being exploited (CVE-2026-34486); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV

CVEs closed

None rated Critical

Exploited

CVE-2026-34486

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.9850

99th percentile

Priority of the 10 CVEs

Patch now 1
                                Urgent 0
                                High 7
                                Routine 2

Fixed package versions

Product	Release	Fixed in
jws7-tomcat	RHEL 10	11.0.21-5.redhat_00004.1.el10jws

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2026-34486	tomcat: Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the by...	7.5	0.9850	KEVExploited
High	CVE-2026-29146	tomcat: This update for tomcat fixes the following issues: Security fixes: - CVE-2026-24880: Request smuggling via invalid...	7.5	0.0885	None reported
High	CVE-2026-41293	jws6-tomcat: Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11...	9.8	0.0171	None reported
High	CVE-2026-43512	jws6-tomcat: DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects...	9.8	0.0133	None reported
High	CVE-2026-43515	jws6-tomcat: Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in...	9.1	0.0122	None reported
High	CVE-2026-41284	jws6-tomcat: Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat...	7.5	0.0084	None reported
High	CVE-2026-42498	jws6-tomcat: Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache To...	7.3	0.0069	None reported
High	CVE-2026-43513	jws6-tomcat: Improper Handling of Case Sensitivity vulnerability in LockOutRealm in Apache Tomcat. This issue affects Apache Tomca...	7.5	0.0050	None reported
Routine	CVE-2026-55956	jws6-tomcat: Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet...	6.5	0.0070	None reported
Routine	CVE-2026-43514	jws6-tomcat: Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat. This issue affects Apache Tom...	3.7	0.0035	None reported

Also fixes CVE-2026-34486

ALSA-2026:36790
tomcat9, tomcat9-admin-webapps, tomcat9-docs-webapp and 5 more on almalinux 10
SUSE-SU-2026:1604-1
tomcat on sles 15.6, sles 15.7
SUSE-SU-2026:1603-1
tomcat10 on sles 15.6, sles 15.7
SUSE-SU-2026:1558-1
tomcat11 on sles 15.6, sles 15.7
OPENSUSE-SU-2026:20611-1
tomcat on opensuse-leap 16.0
OPENSUSE-SU-2026:20612-1
tomcat10 on opensuse-leap 16.0
OPENSUSE-SU-2026:20595-1
tomcat11 on opensuse-leap 16.0
ELSA-2026-36788
tomcat, tomcat-admin-webapps, tomcat-docs-webapp and 5 more on ol 10

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:39188

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