CVE-2026-43514

Apache Tomcat: AJP secret compared in non-constant time

LOW
3.7
CVSS Score
Published: May 12, 2026 at 03:32 PM UTC
Updated: October 26, 2026 at 06:10 PM UTC
1 product affected across 1 vendorTomcat

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Severity
LOW3.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.1.0 ≤ v < 10.1.5511.0.0 ≤ v < 11.0.227.0.0 ≤ v ≤ 7.0.1098.5.0 ≤ v ≤ 8.5.1009.0.0 ≤ v < 9.0.11810.1.0-M111.0.0-M17.0.08.5.09.0.0.M1
Vendor states this is fixed in 7.00 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1m
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/05/12/10

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-208

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