PT-2026-118374 · Apache · Apache Tomcat

CVE-2026-101356

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Published

2026-10-20

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Updated

2026-10-20

CVSS v3.1

9.1

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.
This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 through 9.0.122.
Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fixes the issue.

Fix

Race Condition

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Weakness Enumeration

Related Identifiers

CVE-2026-101356

Affected Products

Apache Tomcat