CVE-2026-94094

OpenClaw up to 2026.9.5 is vulnerable to a remote denial-of-service in the Canvas Host Route component. The root cause is in the function createCanvasHostHandler (file extensions/canvas/src/host/server.ts): the HTTP GET path buffers the entire file via readFile() (src/canvas/serve.runtime.ts:17,1...

CVE-2026-87742

A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service DoS by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a lack of read backpressure, this rapidly...

CVE-2026-87742

A flaw in quarkus-websockets-next allows a remote attacker to trigger a Denial of Service by streaming messages over a single connection faster than the application can process them. The root cause is unbounded message buffering combined with a lack of read backpressure , which rapidly exhausts h...

EUVD-2026-81675

A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service DoS by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a lack of read backpressure, this rapidly...

CVE-2026-87742

A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service DoS by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a lack of read backpressure, this rapidly...

Denial of Service (DoS)

Overview Affected versions of this package are vulnerable to Denial of Service DoS in the HTTP/2 flow-control process. An attacker can exhaust system memory by sending data faster than it is consumed by the application, causing unbounded buffering and potential service disruption. Details Denial ...

Denial of Service (DoS)

Overview Affected versions of this package are vulnerable to Denial of Service DoS in the HTTP/2 flow-control process. An attacker can exhaust system memory by sending data faster than it is consumed by the application, causing unbounded buffering and potential service disruption. Details Denial ...

CVE-2026-69218

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, When Ember receives an HTTP/2 HEADERS or PUSHPROMISE frame without ENDHEADERS, H2Connection buffers the header block and subsequent CONTINUATION fragments without a size bound. A remote peer can keep an incomplete bloc...

GHSA-6M4X-PP6Q-5JMM Http4s Ember HTTP/2: unbounded inbound body buffering

Ember's HTTP/2 stack replenishes the inbound flow-control window based on bytes received off the wire, not bytes consumed by the application. Received DATA is buffered in an unbounded per-stream channel. Flow control therefore provides no backpressure: a peer can stream a large or unbounded body...

Http4s Ember HTTP/2: unbounded inbound body buffering

Ember's HTTP/2 stack replenishes the inbound flow-control window based on bytes received off the wire, not bytes consumed by the application. Received DATA is buffered in an unbounded per-stream channel. Flow control therefore provides no backpressure: a peer can stream a large or unbounded body...

CVE-2026-69202 Http4s Ember HTTP/2: unbounded inbound body buffering

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s HTTP/2 flow-control window is replenished according to bytes received from the network rather than bytes consumed by the application, while each stream stores DATA in an unbounded channel. A hostile peer can...

CVE-2026-69202 Http4s Ember HTTP/2: unbounded inbound body buffering

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, Ember’s HTTP/2 flow-control window is replenished according to bytes received from the network rather than bytes consumed by the application, while each stream stores DATA in an unbounded channel. A hostile peer can...

CVE-2026-69202

Http4s is a Scala HTTP services library. In versions prior to 0.23.35 and 1.0.0-M47 , Ember's HTTP/2 flow-control window is replenished based on bytes received from the network rather than bytes consumed by the application, and each stream stores DATA in an unbounded channel . A remote peer can t...

CVE-2026-69209

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The shared WebSocket decoder permits unbounded message buffering because defragmentation accumulates fragments without a limit and FrameTranscoder accepts declared lengths up to Int.MaxValue. A remote client that...

EUVD-2026-79173

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The shared WebSocket decoder permits unbounded message buffering because defragmentation accumulates fragments without a limit and FrameTranscoder accepts declared lengths up to Int.MaxValue. A remote client that...

CVE-2026-69209

Http4s , a Scala library for HTTP services, contains an unbounded memory buffering flaw in its shared WebSocket decoder . Defragmentation accumulates fragments without a size limit, and FrameTranscoder accepts declared lengths up to Int.MaxValue. A remote client that completes a WebSocket handsha...

CVE-2026-69209 Http4s: WebSocket decoder accepts unbounded message sizes

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The shared WebSocket decoder permits unbounded message buffering because defragmentation accumulates fragments without a limit and FrameTranscoder accepts declared lengths up to Int.MaxValue. A remote client that...

CVE-2026-69209 Http4s: WebSocket decoder accepts unbounded message sizes

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The shared WebSocket decoder permits unbounded message buffering because defragmentation accumulates fragments without a limit and FrameTranscoder accepts declared lengths up to Int.MaxValue. A remote client that...

PT-2026-92379

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The shared WebSocket decoder permits unbounded message buffering because defragmentation accumulates fragments without a limit and FrameTranscoder accepts declared lengths up to Int.MaxValue. A remote client that...

PT-2026-92428

When Ember receives an HTTP/2 HEADERS or PUSH PROMISE frame without the END HEADERS flag, it buffers the header block fragment and waits for subsequent CONTINUATION frames. These accumulate unbounded until the connection closes. Impact A remote, unauthenticated peer can exhaust the heap on any...