Bug 2556186 (CVE-2026-101356) - CVE-2026-101356 tomcat: tomcat: Information disclosure via incorrect object recycling in HTTP/2 processing
Summary: CVE-2026-101356 tomcat: tomcat: Information disclosure via incorrect object r...
Keywords:
Status: NEW
Alias: CVE-2026-101356
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2558425 2558429 2558431
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-20 13:53 UTC by OSIDB Bzimport
Modified: 2026-10-21 18:02 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-10-20 13:53:05 UTC 
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.
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