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HTTP/2 CONNECT Upgraded stream bypasses H2 flow-control backpressure, causing unbounded memory growth (OOM)

C-bugCategory: bug. Something is wrong. This is bad!Category: bug. Something is wrong. This is bad!

Status: Open.

#4049 In hyperium/hyper;

· abbshr opened on Apr 9, 2026

Slower client can cause h1 server to disconnect without flushing Full body

C-bugCategory: bug. Something is wrong. This is bad!Category: bug. Something is wrong. This is bad!

Status: Open.

#4022 In hyperium/hyper;

· deven96 opened on Feb 16, 2026

Request client setting to allow RST instead of FIN on request cancelation.

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#4017 In hyperium/hyper;

· BlackRabbitCoder opened on Feb 12, 2026

hyper-utils: Move connect types so that they can be used with pool

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#4014 In hyperium/hyper;

· sjcobb2022 opened on Jan 30, 2026

&mut self in HttpService

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#4013 In hyperium/hyper;

· jonahromero opened on Jan 26, 2026

H2 streams reserve 1 more byte than needed from the connection, leading to deadlock

C-bugCategory: bug. Something is wrong. This is bad!Category: bug. Something is wrong. This is bad!

Status: Open.

#4003 In hyperium/hyper;

· jackkleeman opened on Jan 6, 2026

Hyper returns a partial byte array when its runtime is closed mid-read

A-http1Area: HTTP/1 specific.Area: HTTP/1 specific.

C-bugCategory: bug. Something is wrong. This is bad!Category: bug. Something is wrong. This is bad!

E-mediumEffort: medium. Some knowledge of how hyper internal works would be useful.Effort: medium. Some knowledge of how hyper internal works would be useful.

Status: Open.

#3995 In hyperium/hyper;

· criccomini opened on Dec 16, 2025

feat: expose HTTP/1.1 parsing API for raw byte parsing

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#3990 In hyperium/hyper;

· AdamDawidKrol opened on Dec 8, 2025

Make H2Upgraded public to allow downcasting Upgraded for Sync access to underlying IO

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#3987 In hyperium/hyper;

· imlk0 opened on Dec 1, 2025

Add HTTP/2 103 Early Hints Support to Hyper

A-http2Area: HTTP/2 specific.Area: HTTP/2 specific.

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#3980 In hyperium/hyper;

· apu031 opened on Nov 19, 2025

hyper_util: expose a timeout on ReadVersion in server::conn::auto

A-serverArea: server.Area: server.

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

K-hyper-utilCrate: hyper-utilCrate: hyper-util

Status: Open.

#3962 In hyperium/hyper;

· howardjohn opened on Oct 7, 2025

Allow accepting new connections during a graceful shutdown

C-featureCategory: feature. This is adding a new feature.Category: feature. This is adding a new feature.

Status: Open.

#3961 In hyperium/hyper;

· howardjohn opened on Oct 7, 2025