CVE-2026-43514

Name: CVE-2026-43514
Creator: NVD / NIST
Published: 2026-05-12T16:16:18.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.7/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2026-43514 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. Observable Timing Discrepancy vulnerability when comparing AJP secret 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 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

Observable Timing Discrepancy vulnerability when comparing AJP secret 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 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Older unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Metrics

CVSS 3.1

3.7/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.35%

27.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-208

Affected Software

Vendor	Product	Versions
Apache	Tomcat	>= 7.0.0, <= 7.0.109
Apache	Tomcat	>= 8.5.0, <= 8.5.100
Apache	Tomcat	>= 9.0.0, < 9.0.118
Apache	Tomcat	>= 10.1.0, < 10.1.55
Apache	Tomcat	>= 11.0.0, < 11.0.22

References

https://lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1mMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/12/10Mailing List, Third Party Advisory

Timeline

Published: May 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-43514?

How severe is CVE-2026-43514?

CVE-2026-43514 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2026-43514?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-43514?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST