PT-2026-120790 · Apache · Apache Traffic Server

Craig Taylor

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CVE-2026-111814

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Published

2026-10-21

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Updated

2026-10-21

CVSS v3.1

10

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Apache Traffic Server's default outbound session-sharing policy can reuse a pooled TLS session authenticated with one client certificate for a transaction configured to present a different one.
This issue affects Apache Traffic Server: from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.
Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.

Fix

Improper Certificate Validation

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Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-111814

Affected Products

Apache Traffic Server