CVE-2026-21714

CVE-2026-21714 is a memory leak in Node.js HTTP/2 that occurs when a client sends WINDOW_UPDATE frames on stream 0, preventing proper Http2Session cleanup and potentially exhausting resources. Affected: Node.js 20, 22, 24, and 25. Connected advisories report fixes in downstream distributions: e.g...

Missing Release of Memory after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in HTTP/2 servers that triggers when a client sends WINDOWUPDATE frames on stream 0 that cause the flow control window to exceed $2^31-1$. Although the server responds with a GOAWAY...

SUSE CVE-2026-21435

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21435

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21435

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21435 webtransport-go CloseWithError can block indefinitely

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

CVE-2026-21435

Technical details for CVE-2026-21435 are not publicly available in the provided connected documents. Monitor for updates.

CVE-2026-21435 webtransport-go CloseWithError can block indefinitely

webtransport-go is an implementation of the WebTransport protocol. Prior to v0.10.0, an attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream,...

Improper Resource Shutdown or Release

Overview Affected versions of this package are vulnerable to Improper Resource Shutdown or Release via the CloseWithError function. An attacker can cause the process to hang indefinitely by withholding QUIC flow control credit on the CONNECT stream, which prevents the transmission of the...

webtransport-go: CloseWithError can block indefinitely

Summary An attacker can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. A malicious peer can withhold QUIC flow control credit on the CONNECT stream, blocking transmission of the WTCLOSESESSION capsule and causing the close operati...

PT-2026-7869

Name of the Vulnerable Software and Affected Versions webtransport-go versions prior to 0.10.0 Description A malicious peer can cause a denial of service in webtransport-go by preventing or indefinitely delaying WebTransport session closure. Specifically, a peer can withhold QUIC flow control...

Optimizing Agent Planning for Security and Autonomy

Indirect prompt injection attacks threaten AI agents that execute consequential actions, motivating deterministic system-level defenses. Such defenses can provably block unsafe actions by enforcing confidentiality and integrity policies, but currently appear costly: they reduce task completion...

Exploit for CVE-2025-8671

CVE-2025-8671-vulnerability-POC- CVE-2025-8671 vulnerability P...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the failure to clean up the flow control list during module removal, potentially leading to memor...

ROS-20260112-7385

A vulnerability in the mptcppmnlrmaddrorsubflow function of the Linux kernel is related to incorrect flow control. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

CVE-2019-18278

When executing VideoLAN VLC media player 3.0.8 with libqt on Windows, Data from a Faulting Address controls Code Flow starting at libqtplugin!vlcentrylicense300f+0x00000000003b9aba. NOTE: the VideoLAN security team indicates that they have not been contacted, and have no way of reproducing this...

CVE-2019-16899

In Advantech WebAccess/HMI Designer 2.1.9.31, Data from a Faulting Address controls Code Flow starting at PMV3!CTagInfoThreadBase::GetNICInfo+0x0000000000512918...

CLSA-2025-1763374645 varnish: Fix of 2 CVEs

CVE-2024-30156: fix HTTP/2 flow control vulnerability allowing window credit exhaustion Broke Window Attack causing potential denial of service - CVE-2025-47905: fix client-side request smuggling via malformed HTTP/1 chunked requests...

SUSE CVE-2025-62409

Envoy is a cloud-native, open source edge and service proxy. Prior to 1.36.1, 1.35.5, 1.34.9, and 1.33.10, large requests and responses can potentially trigger TCP connection pool crashes due to flow control management in Envoy. It will happen when the connection is closing but upstream data is...

BIT-ENVOY-2025-62409 Envoy allows large requests and responses to cause TCP connection pool crash

Envoy is a cloud-native, open source edge and service proxy. Prior to 1.36.1, 1.35.5, 1.34.9, and 1.33.10, large requests and responses can potentially trigger TCP connection pool crashes due to flow control management in Envoy. It will happen when the connection is closing but upstream data is...