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...

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 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...

CVE-2025-53114

Affected software: CometD server implementations. A vulnerability arises when clients consistently set ext.ack to 1 during /meta/connect while the acknowledgement extension is enabled, causing the unacknowledged message queue to grow without bound and potentially trigger OutOfMemoryError. Affecte...

CVE-2025-53114: Uncontrolled Resource Consumption

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",...

Improper Resource Shutdown or Release

Overview Affected versions of this package are vulnerable to Improper Resource Shutdown or Release via the acknowledgement extension process. An attacker can exhaust server memory resources by continuously sending requests with a fixed batch value, causing the unacknowledged message queue to grow...

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-2026-48527

Name of the Vulnerable Software and Affected Versions CometD versions 5.0.x CometD versions 6.0.x CometD versions 8.0.x Description Improper handling of the acknowledgement extension allows malicious clients to cause a server outage. By consistently sending a fixed batch value in the ext paramete...

CVE-2026-34960 barebox Out-of-Bounds Read in DHCP Option Parsing

barebox prior to version 2026.04.0 contains an out-of-bounds read vulnerability in DHCP option parsing within the dhcpmessagetype function that fails to verify the options pointer remains within received packet bounds. An attacker on the same broadcast domain can send a crafted DHCP Offer or ACK...

PT-2026-39849

Name of the Vulnerable Software and Affected Versions barebox versions prior to 2026.04.0 Description An out-of-bounds read occurs during DHCP option parsing within the dhcp message type function because the software fails to verify that the options pointer remains within the received packet...

apko doesn't verify downloaded apk packages against APKINDEX checksum (package substitution possible)

apko verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed index. The checksum is parsed and available via ChecksumString, and the downloaded package control hash is computed, but the two values are never...

MsQuic has a Remote Elevation of Privilege Vulnerability

Summary Improper input validation in Microsoft QUIC allows an unauthorized attacker to elevate privileges over a network. Details Improper Input Validation Integer Underflow Wrap or Wraparound when decoding ACK frame. Patches - Fix underflow in ACK frame parsing - 1e6e999b Impact An attacker who...

CVE-2026-5264

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow...

Linux netlink_ack() Buffer Overflow DoS

The vulnerability of the netlinkack function in the net/netlink/afnetlink.c module of the Linux operating system is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

EUVD-2026-16128

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

CVE-2026-4247 TCP: remotely exploitable DoS vector (mbuf leak)

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

CVE-2026-4247

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...