While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.
{ "nvd_published_at": "2020-12-03T19:15:00Z", "cwe_ids": [ "CWE-200" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2021-04-12T16:06:44Z" }