CVE-2026-16028 - Protocol::HTTP2 versions before 1.14 for Perl allow memory exhaustion via closed streams that stream_state never removes from the connection stream table
Brief
CVE ID : CVE-2026-16028
Published : Sept. 7, 2026, 7:17 p. m.
- 1 hour, 32 minutes ago
Description : Protocol::HTTP2 versions before 1.14 for Perl allow memory exhaustion via closed streams that stream_state never removes from the connection stream table.
When a stream reaches the CLOSED state, stream_state returns the concurrency slot and clears most of the stream's keys, but the entry itself stays in the connection stream table and nothing in the distribution removes it. Stream identifiers increase monotonically, so a peer can open and close streams on one connection indefinitely, each close leaving a residual entry that is retained for the life of the connection.
SETTINGS_MAX_CONCURRENT_STREAMS does not bound this.