Information Exposure Through Timing Discrepancy in Apache Tomcat - CVE-2026-43514
Published: May 12, 2026
Vulnerability identifier: #VU131178
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-43514
CWE-ID: CWE-208
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Tomcat
Apache Tomcat
Detailed vulnerability description
The vulnerability allows a remote attacker to disclose the AJP secret.
The vulnerability exists due to observable timing discrepancy in AJP secret comparison when validating the AJP secret. A remote attacker can perform a timing attack to disclose the AJP secret.
Exploitation is limited to an attacker on the local network.
How to mitigate CVE-2026-43514
Install security update from vendor's website.