What is the CVSS score of CVE-2026-24734?

CVE-2026-24734 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.1%.

Which versions of Tomcat are affected by CVE-2026-24734?

A high-severity input validation vulnerability in Apache Tomcat Native affects organizations running vulnerable Tomcat versions, potentially allowing attackers to exploit improper input handling.. A patch is available.

How to fix or mitigate CVE-2026-24734?

Within 24 hours: Identify all systems running Apache Tomcat and determine affected versions; implement network segmentation to restrict Tomcat access to trusted sources only. Within 7 days: Deploy WAF rules to filter malicious inputs targeting known attack vectors; disable unnecessary Tomcat Native features if not required for operations. Within 30 days: Monitor vendor advisories for patch availability; conduct security testing post-patch deployment; review and update input validation controls across affected applications.

Tomcat CVE-2026-24734

HIGH

Improper Input Validation (CWE-20)

2026-02-17 security@apache.org

GHSA-mgp5-rv84-w37q

Apache Tomcat Tomcat Native Authentication Bypass

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

SUSE

7.4 HIGH

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Red Hat

7.4 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 17, 2026 - 19:21 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

2 maven packages depend on org.apache.tomcat.embed:tomcat-embed-core (2 direct, 0 indirect)
3 maven packages depend on org.apache.tomcat:tomcat-coyote (3 direct, 0 indirect)

Ecosystem-wide dependent count for version 11.0.0-M1 and other introduced versions.

DescriptionNVD

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat.

When using an OCSP responder, Tomcat Native (and Tomcat's FFM port of the Tomcat Native code) did not complete verification or freshness checks on the OCSP response which could allow certificate revocation to be bypassed.

This issue affects Apache Tomcat Native: from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.0.114.

The following versions were EOL at the time the CVE was created but are known to be affected: from 1.1.23 through 1.1.34, from 1.2.0 through 1.2.39. Older EOL versions are not affected.

Apache Tomcat Native users are recommended to upgrade to versions 1.3.5 or later or 2.0.12 or later, which fix the issue.

Apache Tomcat users are recommended to upgrade to versions 11.0.18 or later, 10.1.52 or later or 9.0.115 or later which fix the issue.

AnalysisAI

Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat. [CVSS 7.5 HIGH]

Technical ContextAI

Classified as CWE-20 (Improper Input Validation). Affects Tomcat. Improper Input Validation vulnerability in Apache Tomcat Native, Apache Tomcat.

This issue affects Apache Tomcat Native: from 1.3.0 through 1.3.4, from 2.0.0 through 2.0.11; Apache Tomcat: from 11.0.0-M1 through 11.0.17, from 10.1.0-M7 through 10.1.51, from 9.0.83 through 9.

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

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Vendor StatusVendor

SUSE

Severity: High

Product	Status
Container suse/manager/5.0/x86_64/server:latest	Affected
Container suse/sl-micro/6.0/baremetal-os-container:2.1.3-6.51 Container suse/sl-micro/6.0/base-os-container:2.1.3-7.16 Container suse/sl-micro/6.0/toolbox:13.2-9.10 Image SL-Micro Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE	Affected
Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.46 Container suse/sl-micro/6.1/base-os-container:2.2.1-5.68 Image SL-Micro-Azure Image SL-Micro-BYOS-Azure Image SL-Micro-BYOS-EC2 Image SL-Micro-BYOS-GCE Image SL-Micro-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Proxy-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-Azure-llc Image SUSE-Multi-Linux-Manager-Server-Azure-ltd Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2 Image SUSE-Multi-Linux-Manager-Server-BYOS-GCE Image SUSE-Multi-Linux-Manager-Server-EC2-llc Image SUSE-Multi-Linux-Manager-Server-EC2-ltd	Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS	Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS	Fixed

CVE-2026-24734 vulnerability details – vuln.today

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Tomcat CVE-2026-24734

Severity by source

CVSS VectorNVD

Lifecycle Timeline

Blast Radius

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

More in Tomcat

Same weakness CWE-20 – Improper Input Validation

Same technique Authentication Bypass

Vendor StatusVendor

SUSE

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External POC / Exploit Code