CVE-2026-102761: Out-of-bounds Write

NetX Duo's WebSocket client resets the unmasking cursor to the first NXPACKET each time it advances through a chained packet, while the loop's upper bound belongs to the current packet. With the standard contiguous packet-pool layout, a masked server frame split across two packets therefore drive...

CVE-2026-102560: Out-of-bounds Read

A flaw was found in libsoup. When the permessage-deflate WebSocket extension compresses a very large outgoing message, truncated size calculations used for GByteArray growth could wrap, causing zlib to write past the allocated buffer and resulting in a heap buffer overflow...

CVE-2026-102559: Out-of-bounds Read

A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow...

CVE-2026-102557: Out-of-bounds Read

A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used th...

PT-2026-102755

A flaw was found in libsoup. When the permessage-deflate WebSocket extension compresses a very large outgoing message, truncated size calculations used for GByteArray growth could wrap, causing zlib to write past the allocated buffer and resulting in a heap buffer overflow...

PT-2026-102754

A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation APIs could be truncated while the masking routine still used the full length, causing a heap buffer overflow...

PT-2026-102680

A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the limits of the underlying buffer type. A remote peer could send fragments that caused size truncation while the implementation still used th...

PT-2026-102773

Name of the Vulnerable Software and Affected Versions NetX Duo affected versions not specified Description The WebSocket client incorrectly resets the unmasking cursor to the first NX PACKET when advancing through a chained packet, while the loop's upper bound remains tied to the current packet. ...

Linux Distros Unpatched Vulnerability : CVE-2026-102559

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libsoup. When constructing a masked WebSocket client frame for a very large outgoing payload, size values passed to GByteArray allocation AP...

Linux Distros Unpatched Vulnerability : CVE-2026-102557

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libsoup. When reassembling fragmented WebSocket messages into a GByteArray, libsoup did not adequately cap total message size against the...

Amazon Linux 2023 : nodejs22, nodejs22-devel, nodejs22-full-i18n (ALAS2023-2026-3123)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3123 advisory. undici's WebSocket client crashes the whole Node.js process during the opening handshake when a server responds with a subprotocol that the client never requested. A default WebSocket connecti...

Amazon Linux 2023 : libsoup3, libsoup3-devel (ALAS2023-2026-3144)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3144 advisory. The fix for CVE-2026-0716 commit 6ff7ef0, libsoup 3.6.6 placed the integer overflow guard inside the if masked block, leaving unmasked server-to-client frames unprotected. A malicious WebSocke...

CVE-2026-102556: Access of Resource Using Incompatible Type

A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap...

PT-2026-102679

A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap...

Linux Distros Unpatched Vulnerability : CVE-2026-102556

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even...

SUSE CVE-2026-67411

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3, native MQTT and MQTT over WebSocket behind a trusted PROXY Protocol frontend could lose the proxy-derived client address before the MQTT authentication path checked loopbackusers, causing th...

ANT-2026-Y9CTVKPP · jetty/jetty.project · Denial of Service / Resource Exhaustion

denial-of-service high GHSA-85fq-fc5f-7j7g Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-Y9CTVKPP: WebSocket reserved opcode...

EUVD-2026-71603

undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression...

GHSA-3WWX-PV8P-Q78V undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression

Impact undici's WebSocket client including Node.js's bundled globalThis.WebSocket crashes the entire Node.js process when a remote WebSocket peer sends a permessage-deflate compressed message that crosses the decompressed-payload size limit and then contains a malformed DEFLATE block. In...

undici vulnerable to Denial of Service via unhandled error in WebSocket permessage-deflate decompression

Impact undici's WebSocket client including Node.js's bundled globalThis.WebSocket crashes the entire Node.js process when a remote WebSocket peer sends a permessage-deflate compressed message that crosses the decompressed-payload size limit and then contains a malformed DEFLATE block. In...