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-2026-91960

A flaw was found in FreeRDP. A remote attacker, specifically a malicious RD Gateway peer, could send a crafted WebSocket Ping frame with an extended payload length. This action triggers an an integer overflow in the StreamEnsureRemainingCapacity function, leading to an integer wraparound and a...

CVE-2026-91960

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

DEBIAN-CVE-2026-91960

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

EUVD-2026-78636

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

CVE-2026-91960 FreeRDP before 3.31.0 Integer Overflow Double Free

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

CVE-2026-91960 FreeRDP before 3.31.0 Integer Overflow Double Free

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

rabbitmq-server: RabbitMQ: Cross-Site WebSocket Hijacking via missing Origin header validation

A flaw was found in RabbitMQ's Web-MQTT and Web-STOMP handlers. These handlers do not properly validate the Origin header during a WebSocket upgrade. When specific non-default configurations are enabled, such as usehttpauth=true for Web-STOMP or sslcertlogin=true for both plugins, an attacker can...

rabbitmq: rabbitmq_web_mqtt: RabbitMQ Web-MQTT plugin: Denial of Service via decompression bomb

A flaw was found in the rabbitmqwebmqtt plugin of RabbitMQ. An unauthenticated remote attacker can exploit a decompression bomb vulnerability by sending a highly-compressed WebSocket frame. This frame, when decompressed, inflates to gigabytes of memory, leading to a Denial of Service DoS by...

rabbitmq-server: rabbitmq-server: Denial of Service via unbounded pre-authentication state accumulation in Web STOMP

A flaw was found in RabbitMQ. When the Web STOMP plugin is enabled, the WebSocket handler fails to enforce maximum frame size limits or login timeouts prior to client authentication. An unauthenticated remote attacker can exploit this vulnerability by sending a continuous stream of small frames t...

Human Attacker Exploits Marimo RCE, Reaches SSH Bastion in Eight Seconds

With artificial intelligence AI shrinking the window between vulnerability discovery and exploitation and lowering the barrier to entry for bad actors, new findings from Sysdig show that skilled human operators can move just as swiftly after gaining initial access. In one instance highlighted by...

CVE-2026-69209: Uncontrolled Resource Consumption

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...

Fixed in Apache Tomcat 9.0.122

Low: WebSocket message smuggling with per-message-deflate CVE-2026-87022 Improper handling of length parameter allows WebSocket message smuggling when per-message-deflate is used. This was fixed with commit 959a52a2. This issue was reported to the Tomcat security team on 7 September 2026. The iss...

Fixed in Apache Tomcat 10.1.60

Low: WebSocket message smuggling with per-message-deflate CVE-2026-87022 Improper handling of length parameter allows WebSocket message smuggling when per-message-deflate is used. This was fixed with commit 567a8551. This issue was reported to the Tomcat security team on 7 September 2026. The iss...

Fixed in Apache Tomcat 11.0.26

Low: WebSocket message smuggling with per-message-deflate CVE-2026-87022 Improper handling of length parameter allows WebSocket message smuggling when per-message-deflate is used. This was fixed with commit 4fef25fe. This issue was reported to the Tomcat security team on 7 September 2026. The iss...

CVE-2026-83480: Uncontrolled Resource Consumption

Vulnerability in the Helidon product of Oracle Fusion Middleware component: WebSocket. Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerabilit...

CVE-2026-83330: Uncontrolled Resource Consumption

Vulnerability in the Helidon product of Oracle Fusion Middleware component: WebSocket. Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerabilit...

CVE-2026-69210: Loop with Unreachable Exit Condition

Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, WebSocket FrameTranscoder.bodyLength rejects extended payload lengths above Integer.MAXVALUE but permits negative 64-bit lengths. A remote client that completes a WebSocket handshake through an Ember server can send su...

SUSE SLES15 Security Update : python-aiohttp (SUSE-SU-2026:4113-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4113-1 advisory. - CVE-2026-59881: excessive resource consumption due to WebSocket client accepting compressed frames without negotiated...