Vulnerability	Vulnerable Version
H Denial of Service (DoS) `priority` is a pure-Python implementation of the HTTP/2 priority tree. Affected versions of this package are vulnerable to Denial of Service (DoS) attacks. A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority information for each stream, and would therefore allocate unbounded amounts of memory. Attempting to actually use a tree like this would also cause extremely high CPU usage to maintain the tree.	[,1.2.0)

Denial of Service (DoS)

priority is a pure-Python implementation of the HTTP/2 priority tree.

Affected versions of this package are vulnerable to Denial of Service (DoS) attacks. A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority information for each stream, and would therefore allocate unbounded amounts of memory. Attempting to actually use a tree like this would also cause extremely high CPU usage to maintain the tree.

[,1.2.0)

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