EUVD-2026-65485

Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC...

CVE-2026-12629 PL011 UART error interrupts never cleared, enabling an external-peer interrupt-storm denial of service

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

EUVD-2026-60266

The ARM PL011 UART driver in drivers/serial/uartpl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts PL011IMSCERRORMASK are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the R...

JLSEC-2026-1200 By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper...

By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a malicious server can exhaust all available memory by flooding curl with rapid, sequential PING messages...

CVE-2026-63834

A flaw was found in the Linux kernel's batman-adv throughput meter. A remote attacker could exploit an unbound list of unacknowledged packets by sending specially crafted messages. This could force the system to allocate excessive memory or waste significant CPU cycles, leading to a Denial of...

CVE-2026-11586

By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a malicious server can exhaust all available memory by flooding curl with rapid, sequential PING messages...

curl: curl: Denial of Service via WebSocket PING flood

A flaw was found in curl. A malicious server can exploit this vulnerability by sending rapid, sequential WebSocket PING messages. Due to a lack of an upper bound on memory allocation for unacknowledged frames, curl can be forced to exhaust all available memory, leading to a denial of service...

CVE-2025-53114

CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged...

CVE-2025-53114 CometD has acknowledgement extension out of memory

CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged...

CVE-2025-53114 CometD has acknowledgement extension out of memory

CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged...

EUVD-2025-210284

CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged...

GHSA-CQGJ-H8VF-4W59 Acknowledgement extension out of memory

Impact Bad clients that always send a fixed batch value while the server is using the acknowledgement extension can cause the unacknowledged message queue to grow indefinitely, eventually resulting in an OutOfMemoryError. Such bad clients would always send: json "channel": "/meta/connect",...

Acknowledgement extension out of memory

Impact Bad clients that always send a fixed batch value while the server is using the acknowledgement extension can cause the unacknowledged message queue to grow indefinitely, eventually resulting in an OutOfMemoryError. Such bad clients would always send: json "channel": "/meta/connect",...

PT-2026-51742

Name of the Vulnerable Software and Affected Versions libcurl affected versions not specified Description The WebSocket component of the libcurl library contains a resource allocation issue. By default, curl automatically responds to WebSocket PING frames. Because the software lacks an upper boun...

F5 BIG-IP AFM code issue vulnerability

F5 BIG-IP AFM is a high-level firewall product developed by F5 Corporation in the United States, designed to protect against DDoS attacks. There is a code vulnerability in F5 BIG-IP AFM, where unacknowledged traffic may lead to TMM termination...

CVE-1999-0116

Denial of service when an attacker sends many SYN packets to create multiple connections without ever sending an ACK to complete the connection, aka SYN flood...

EUVD-2024-31658

Malicious code in bioql PyPI...

Claude Code: Operating System Command Injection Vulnerability

Claude Code is an open source proxy coding tool from Anthropic. An operating system command injection vulnerability exists in versions of Claude Code prior to 1.0.20, which stems from a command parsing error that could lead to the unacknowledged execution of untrusted commands...

DEBIAN-CVE-2025-53506

Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1...

Apache Tomcat resource management error vulnerabilities

Apache Tomcat is the United States Apache Apache Foundation of a lightweight Web application server . Used to implement the Servlet and JavaServer Page JSP support. Apache Tomcat has a Resource Management Error vulnerability that originates from an HTTP/2 client not acknowledging the initial setu...