BIT-ENVOY-2026-48743 Envoy: HTTP/3 to HTTP/1 request smuggling via headers-only request with nonzero Content-Length

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer HEADERS with FIN / headers-only close but still carries a nonzero...

BIT-HAPROXY-2026-33555

An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be...

CVE-2026-49432

A flaw was found in Apache ActiveMQ. A remote, unauthenticated attacker can exploit an improper input validation vulnerability by sending a specially crafted message with a negative content-length to an exposed STOMP connector. This can lead to a denial of service DoS condition, either by consumi...

Incorrect Calculation of Buffer Size

Overview org.apache.activemq:activemq-all is a package that puts together an ActiveMQ jar bundle. Affected versions of this package are vulnerable to Incorrect Calculation of Buffer Size via the STOMP protocol when a remote unauthenticated peer sends a negative content-length value. An attacker c...

Incorrect Calculation of Buffer Size

Overview Affected versions of this package are vulnerable to Incorrect Calculation of Buffer Size via the STOMP protocol when a remote unauthenticated peer sends a negative content-length value. An attacker can exhaust system resources or force abnormal connection closure by continuously streamin...

Incorrect Calculation of Buffer Size

Overview org.apache.activemq:apache-activemq is a Message Broker and Client implementations. Affected versions of this package are vulnerable to Incorrect Calculation of Buffer Size via the STOMP protocol when a remote unauthenticated peer sends a negative content-length value. An attacker can...

CVE-2026-49432 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

CVE-2026-49432

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

CVE-2026-49432

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

EUVD-2026-40284

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

CVE-2026-49432

An Improper Input Validation vulnerability exists in Apache ActiveMQ , Apache ActiveMQ All , and Apache ActiveMQ Stomp . A remote unauthenticated peer can trigger a denial-of-service (DoS) by sending a negative content-length via an exposed STOMP connector . Specifically, for the NIO STOMP transp...

CVE-2026-49432 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

CVE-2026-49432 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

SUSE CVE-2026-58055

nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting...

CVE-2026-49432

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

CVE-2026-49432: Improper Input Validation

Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can...

PT-2026-55068

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer HEADERS with FIN / headers-only close but still carries a nonzero...

PT-2026-55077

An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be...

Security Bulletin: Multiple security vulnerabilities are addressed with IBM Cloud Pak for Business Automation iFixes for June 2026.

Summary In addition to many updates of operating system level packages, the following security vulnerabilities are addressed with IBM Cloud Pak for Business Automation released in June 2026. Vulnerability Details CVEID:CVE-2025-12635 DESCRIPTION: IBM WebSphere Application Server 8.5, 9.0 and IBM...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling in the handling of HTTP/1.1 Upgrade requests containing a Content-Length header and body on reusable keep-alive backend connections. An attacker can manipulate backend responses by crafting ambiguous HTTP messages...