PT-2026-71705

Name of the Vulnerable Software and Affected Versions CyberPanel versions prior to 3.0.0 Description The WebTerminal FastAPI SSH service contains a hard-coded JSON Web Token JWT secret. This allows unauthenticated remote attackers to forge valid authentication tokens by signing them with the...

Linux Distros Unpatched Vulnerability : CVE-2026-29035

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to...

UBUNTU-CVE-2026-48809

python-engineio is a Python implementation of the Engine.IO realtime client and server. Versions prior to 4.13.2 have two specific configurations of the python-engineio server in which the size of incoming messages is not checked before the messages are loaded into memory. An attacker can take...

CVE-2026-73493

Http4s http4s-blaze-server is a minimal, idiomatic Scala interface for HTTP services. Prior to 0.23.18 and 1.0.0-M42, http4s-blaze-server aggregates fragments of an incoming WebSocket message with no limit on total size or fragment count. A client that completes a WebSocket handshake can send an...

EUVD-2026-57631

Http4s http4s-blaze-server is a minimal, idiomatic Scala interface for HTTP services. Prior to 0.23.18 and 1.0.0-M42, http4s-blaze-server aggregates fragments of an incoming WebSocket message with no limit on total size or fragment count. A client that completes a WebSocket handshake can send an...

CVE-2026-73493

Summary: The CVE affects http4s-blaze-server in WebSocket handling where fragmented messages can be aggregated without an upper bound, causing unbounded heap growth and potential DoS via OutOfMemoryError on the Blaze server thread. Affected scope: any http4s application serving WebSocket routes o...

CVE-2026-73493 http4s-blaze-server: Unbounded WebSocket message aggregation

Http4s http4s-blaze-server is a minimal, idiomatic Scala interface for HTTP services. Prior to 0.23.18 and 1.0.0-M42, http4s-blaze-server aggregates fragments of an incoming WebSocket message with no limit on total size or fragment count. A client that completes a WebSocket handshake can send an...

CVE-2026-73493 http4s-blaze-server: Unbounded WebSocket message aggregation

Http4s http4s-blaze-server is a minimal, idiomatic Scala interface for HTTP services. Prior to 0.23.18 and 1.0.0-M42, http4s-blaze-server aggregates fragments of an incoming WebSocket message with no limit on total size or fragment count. A client that completes a WebSocket handshake can send an...

Next.js: Next.js: Server-Side Request Forgery via crafted WebSocket upgrade requests

A flaw was found in Next.js. Self-hosted applications utilizing the built-in Node.js server are vulnerable to Server-Side Request Forgery SSRF through specially crafted WebSocket upgrade requests. A remote attacker can exploit this by causing the server to proxy requests to arbitrary internal or...

CVE-2026-29035

A flaw was found in CivetWeb. An unauthenticated remote attacker could exploit a heap and stack buffer overflow vulnerability by sending specially crafted compressed WebSocket frames. This could lead to memory corruption, potentially resulting in denial of service or arbitrary code execution. The...

PT-2026-71347

Name of the Vulnerable Software and Affected Versions http4s-blaze-server versions prior to 0.23.18 http4s-blaze-server versions prior to 1.0.0-M42 Description The software aggregates fragments of incoming WebSocket messages without limiting the total size or the number of fragments. A client can...

Linux Distros Unpatched Vulnerability : CVE-2026-15565

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 Undertow. A remote attacker can cause Out of Memory on websockets endpoint without authentication on any @ServerEndpoint class that has any...

CVE-2026-29035

CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to corrupt memory by sending compressed WebSocket frames when both USEZLIB and MGEXPERIMENTALINTERFACES are defined. Attackers can negotiate...

CVE-2026-71467

A flaw was found in search-v2-api. The authentication middleware in the affected component unconditionally skips authentication when a request includes an Upgrade: websocket header. An unauthenticated attacker can exploit this by sending a specially crafted HTTP POST request to the /federated...

EUVD-2026-56944

CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to corrupt memory by sending compressed WebSocket frames when both USEZLIB and MGEXPERIMENTALINTERFACES are defined. Attackers can negotiate...

CVE-2026-29035 CivetWeb Heap/Stack Buffer Overflow via WebSocket permessage-deflate Decompression

CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to corrupt memory by sending compressed WebSocket frames when both USEZLIB and MGEXPERIMENTALINTERFACES are defined. Attackers can negotiate...

CVE-2026-29035

CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to corrupt memory by sending compressed WebSocket frames when both USEZLIB and MGEXPERIMENTALINTERFACES are defined. Attackers can negotiate...

CVE-2026-29035 CivetWeb Heap/Stack Buffer Overflow via WebSocket permessage-deflate Decompression

CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to corrupt memory by sending compressed WebSocket frames when both USEZLIB and MGEXPERIMENTALINTERFACES are defined. Attackers can negotiate...

CVE-2026-29035

CivetWeb commit 4a4f0c95 contains a heap and stack buffer overflow vulnerability in the readwebsocket function that allows unauthenticated remote attackers to corrupt memory by sending compressed WebSocket frames when both USEZLIB and MGEXPERIMENTALINTERFACES are defined. Attackers can negotiate...

CVE-2026-29035

CVE-2026-29035 affects CivetWeb (commit 4a4f0c95) and describes a heap and stack buffer overflow in read_websocket() when both USE_ZLIB and MG_EXPERIMENTAL_INTERFACES are defined. An unauthenticated remote attacker can exploit this via compressed WebSocket frames negotiated with permessage-deflat...