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TI-2026-59035 Aliases CVE-2026-86248GHSA-c47j-g3rg-hrfq

Improper authentication in Apache Tomcat

Priority MEDIUM 49CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 5 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-287.

Summary

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121. Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00496 42nd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 5 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Tomcat11.0.0-M14 – 11.0.25; 10.1.22 – 10.1.59; 9.0.92 – 9.0.121—No fix listedCNA
  • Apache Tomcat VendorApache Affected 11.0.0-M14 – 11.0.25; 10.1.22 – 10.1.59; 9.0.92 – 9.0.121 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

Red Hat 4 advisories

  • RHSA-2026:93618 Released 2026-11-03 · Red Hat rating Important
    Red Hat JBoss Web Server 7.0.3 release and security update
    • Red Hat JBoss Web Server 7.0 on RHEL 10 jws7-mod_cluster-2.1.1-1.Final_redhat_00001.1.el10jws, jws7-mod_cluster-tomcat-2.1.1-1.Final_redhat_00001.1.el10jws, jws7-tomcat-11.0.21-10.redhat_00010.1.el10jws +10
    • Red Hat JBoss Web Server 7.0 on RHEL 8 jws7-mod_cluster-2.1.1-1.Final_redhat_00001.1.el8jws, jws7-mod_cluster-tomcat-2.1.1-1.Final_redhat_00001.1.el8jws, jws7-tomcat-11.0.21-10.redhat_00010.1.el8jws +10
    • Red Hat JBoss Web Server 7.0 on RHEL 9 jws7-mod_cluster-2.1.1-1.Final_redhat_00001.1.el9jws, jws7-mod_cluster-tomcat-2.1.1-1.Final_redhat_00001.1.el9jws, jws7-tomcat-11.0.21-10.redhat_00010.1.el9jws +10
  • RHSA-2026:93622 Released 2026-11-03 · Red Hat rating Important
    Red Hat JBoss Web Server 7.0.3 release and security update
    • Red Hat JBoss Web Server 7.0.3
  • RHSA-2026:68258 Released 2026-09-16 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images tomcat11-1:11.0.26-0.1.hum1@noarch@public-hummingbird-aarch64-rpms, tomcat11-1:11.0.26-0.1.hum1@noarch@public-hummingbird-x86_64-rpms, tomcat11-1:11.0.26-0.1.hum1@src +18
Show 1 more Red Hat advisories
  • RHSA-2026:68257 Released 2026-09-16 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images tomcat10-1:10.1.60-0.1.hum1@noarch@public-hummingbird-aarch64-rpms, tomcat10-1:10.1.60-0.1.hum1@noarch@public-hummingbird-x86_64-rpms, tomcat10-1:10.1.60-0.1.hum1@src +18

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat JBoss Web Server 5AffectedNo fix yet: Fix deferred
Red Hat JBoss Web Server 6AffectedNo fix yet
Red Hat Hardened ImagesFixed RHSA-2026:68257, RHSA-2026:68258
Red Hat JBoss Web Server 7.0 on RHEL 10Fixed RHSA-2026:93618
Red Hat JBoss Web Server 7.0 on RHEL 8Fixed RHSA-2026:93618
Red Hat JBoss Web Server 7.0 on RHEL 9Fixed RHSA-2026:93618
Red Hat JBoss Web Server 7.0.3Fixed RHSA-2026:93622
Not affected: 5 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Hardened Images

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86248
  2. 2026-10-03 Alias added: GHSA-c47j-g3rg-hrfq
  3. 2026-10-08 Affected versions changed · Red Hat
  4. 2026-11-03 Fix available: RHSA-2026:93622 · Red Hat
  5. 2026-11-03 Fix available: RHSA-2026:93618 · Red Hat
  6. 2026-11-03 Fix available: Red Hat JBoss Web Server 7.0 on RHEL 10, Red Hat JBoss Web Server 7.0 on RHEL 8, Red Hat JBoss Web Server 7.0 on RHEL 9 +1 · Red Hat

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences