CVE-2026-56848

CVE-2026-56848 NVD Description A flaw in Node.js HTTP/2 handling allows nghttp2sessionmemsend to be called re-entrantly while nghttp2sessionmemrecv is executing, resulting in a heap-use-after-free. This vulnerability affects Node.js 26.x, 24.x, and 22.x. Note: versions mentioned in the descriptio...

RLSA-2026:61377 Important: nodejs24 security, bug fix, and enhancement update

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices...

nodejs: Node.js: Heap-use-after-free in HTTP/2 handling can lead to denial of service

A heap use-after-free vulnerability in the Node.js HTTP/2 component allows a remote attacker to crash the application, causing a denial of service. This is triggered by an unexpected re-entrant call to nghttp2sessionmemsend while nghttp2sessionmemrecv is still executing...

RLSA-2026:61383 Important: nodejs:22 security update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: nodejs: Node.js: Unauthorized filesystem access due to Permission Model enforcement flaw CVE-2026-58043 nodejs: Node.js: Remote memory exhaustion...

ALSA-2026:61386 Important: nodejs:24 security update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: nodejs: Node.js: Unauthorized filesystem access due to Permission Model enforcement flaw CVE-2026-58043 nodejs: Node.js: Remote memory exhaustion...

RockyLinux 9 : nodejs:22 (RLSA-2026:61383)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:61383 advisory. nodejs: Node.js: Unauthorized filesystem access due to Permission Model enforcement flaw CVE-2026-58043 nodejs: Node.js: Remote memory exhaustion via...

RHEL 9 : nodejs:24 (RHSA-2026:61386)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:61386 advisory. Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language...

ALSA-2026:61377 Important: nodejs24 security, bug fix, and enhancement update

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices...

Improper Validation of Unsafe Equivalence in Input

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Improper Validation of Unsafe Equivalence in Input in the HTTP/2 request handling. An attacker can bypass strict SNI validation by...

KLA91234 SB vulnerabilities in Apache Tomcat

Security bypass vulnerabilities were found in Apache Tomcat. Malicious users can exploit these vulnerabilities to bypass security restrictions. Below is a complete list of vulnerabilities: 1. Security vulnerability can be exploited to bypass security restrictions. 2. Security vulnerability in...

CVE-2026-56848

A flaw in Node.js HTTP/2 handling allows nghttp2sessionmemsend to be called re-entrantly while nghttp2sessionmemrecv is executing, resulting in a heap-use-after-free. This vulnerability affects Node.js 26.x, 24.x, and 22.x...

[SECURITY] [DSA 6120-1] tomcat10 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6120-1 [email protected] https://www.debian.org/security/ Markus Koschany February 05, 2026 https://www.debian.org/security/faq -...

EUVD-2025-18092

Malicious code in bioql PyPI...

BIT-TOMCAT-2024-34750 Apache Tomcat: HTTP/2 excess header handling DoS

Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of...

CVE-2025-5991

A use-after-free vulnerability has been discovered in Qt's QHttp2ProtocolHandler function. This vulnerability only affects HTTP/2 handling and is the result of a race condition between HTTP body and error response handling. Mitigation Mitigation for this issue is either not available or the...

CVE-2025-5991

CVE-2025-5991 affects Qt 6.9.0 and is fixed in Qt 6.9.1. The vulnerability is a Use After Free in QtNetwork’s QHttp2ProtocolHandler, caused by a race between QHttp2Stream’s POST body upload and simultaneous handling of HTTP error responses. It only impacts HTTP/2 handling (not HTTP). Exploitation...

USN-6754-1 nghttp2 vulnerabilities

It was discovered that nghttp2 incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause nghttp2 to consume resources, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. CVE-2019-9511, CVE-2019-9513 It was...

Apache httpd -- multiple vulnerabilities

The Apache httpd project reports: important: Read after free in modhttp2 CVE-2017-9789 When under stress, closing many connections, the HTTP/2 handling code would sometimes access memory after it has been freed, resulting in potentially erratic behaviour. important: Uninitialized memory reflectio...

Fixed in Apache Tomcat 9.0.0.M19

Important: Information Disclosure CVE-2017-5651 The refactoring of the HTTP connectors for 8.5.x onwards, introduced a regression in the send file processing. If the send file processing completed quickly, it was possible for the Processor to be added to the processor cache twice. This could resu...