gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation

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Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 DATA frame receive buffer handling, where each received fragment incurs per-fragment tracking and queue allocation overhead even while staying within the configured...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 DATA frame receive buffer handling, where each received fragment incurs per-fragment tracking and queue allocation overhead even while staying within the configured...

Astra Linux – Vulnerability in Jetty9

In Eclipse Jetty, versions =9.4.57, =10.0.25, =11.0.25, =12.0.21, and =12.1.0alpha2, an HTTP/2 client may trigger the server to send RSTSTREAM frames. This can happen by sending frames that are malformed or should not be sent under certain stream states, thereby forcing the server to consume...

CVE-2026-72671

A Kibana Machine Learning capability that removes a saved object from the current space accepts machine learning trained models as a target, but it verifies only the privileges that apply to anomaly detection jobs and data frame analytics jobs. A user whose role grants create anomaly detection jo...

CVE-2026-73568

py-libp2p (Python implementation of libp2p) before 0.7.0 has a yamux handle_incoming() flaw in libp2p/stream_muxer/yamux/yamux.py: it reads a 32-bit DATA frame length with read_exactly() before validating against MAX_WINDOW_SIZE or checking stream_id. A peer completing the Noise handshake can sen...

PT-2026-71781

A Kibana Machine Learning capability that removes a saved object from the current space accepts machine learning trained models as a target, but it verifies only the privileges that apply to anomaly detection jobs and data frame analytics jobs. A user whose role grants create anomaly detection jo...

io.netty/netty-codec-http2: Netty: Denial of Service via HTTP/2 DATA frame memory leak

A flaw was found in Netty, a network application framework. A remote, unauthenticated attacker can exploit this vulnerability by sending specially crafted HTTP/2 DATA frames to applications that use Netty and have HTTP/2 content decompression enabled. This can lead to memory exhaustion, causing t...

DoS (Denial of Service) io.netty:netty-codec-http2 Dependency in Bamboo Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 10.0.0, 10.1.0, 10.2.0, 11.0.0, 12.0.0, and 12.1.0 of Bamboo Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows a...

EUVD-2026-47581

Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed Direct memory leak / OOM DoS...

GHSA-HMJ8-5XMH-5573 libp2p: yamux connection DoS via oversized data frame

Summary The yamux stream multiplexer in py-libp2p does not validate incoming DATA frame lengths against the receive window before reading the frame body. Any peer that completes a standard libp2p handshake can send a single 12-byte frame claiming a 4 GB body, causing the victim's yamux read loop ...

SUSE CVE-2026-56819

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

CVE-2026-56819

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

DEBIAN-CVE-2026-56819

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

CVE-2026-56819 Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

CVE-2026-56819

What was affected: Netty versions 4.2.0.Final–4.2.15.Final and 4.1.0.Final–4.1.135.Final. Root cause: when processing HTTP/2 DATA frames for streams whose decompressor had already closed, Http2Decompressor.decompress(...) retains the inbound ByteBuf and does not release it on the error path, leak...

CVE-2026-56819

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2 content...

PT-2026-63258

Name of the Vulnerable Software and Affected Versions Netty versions 4.1.0.Final through 4.1.135.Final Netty versions 4.2.0.Final through 4.2.15.Final Description A remote unauthenticated peer can cause a memory leak of one direct ByteBuf per HTTP/2 DATA frame in applications that enable HTTP/2...

CVE-2026-51541

OpENer 2.3.0 (commit 76b95cf) is affected by CVE-2026-51541 due to an out-of-bounds read in CIP message parsing when processing malformed explicit requests with a forged EPath size. An ENIP SendRRData frame carrying a short CIP payload with a larger declared path_size can cause the parser to cont...

PT-2026-57879

Name of the Vulnerable Software and Affected Versions OpENer version 2.3.0 Description An out-of-bounds read occurs during CIP Common Industrial Protocol message parsing when processing malformed explicit requests. An attacker can send a valid ENIP SendRRData frame containing a short CIP payload...