Description
If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.
Remediation
References
Related Vulnerabilities
TYPO3 Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2020-11069)
Oracle Database Server CVE-2011-0835 Vulnerability (CVE-2011-0835)
MediaWiki Improper Privilege Management Vulnerability (CVE-2021-44857)
PostgreSQL Use of Inherently Dangerous Function Vulnerability (CVE-2026-6477)
OpenSSL Resource Management Errors Vulnerability (CVE-2014-3506)