Description
A regression in the fix for bug 66512 in Apache Tomcat 11.0.0-M5, 10.1.8, 9.0.74 and 8.5.88 meant that, if a response did not include any HTTP headers no AJP SEND_HEADERS messare woudl be sent for the response which in turn meant that at least one AJP proxy (mod_proxy_ajp) would use the response headers from the previous request leading to an information leak.
Remediation
References
https://lists.apache.org/thread/j1ksjh9m9gx1q60rtk1sbzmxhvj5h5qz
https://security.netapp.com/advisory/ntap-20230714-0003/
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