CVE-2026-101356

critical · 9.1

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.

9.1

CVSS

0.5%

EPSS (exploit prob.)

42nd

EPSS percentile

2026-10-20

Published

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

Weaknesses

CWE-362

References

https://lists.apache.org/thread.html/d1xjt7bbjqw7y7n5mcb4fm815hpfgc27
http://www.openwall.com/lists/oss-security/2026/10/20/27

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-101356