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...

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...

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...

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...

Security Bulletin: security vulnerabilities are addressed with IBM Business Automation Insights iFixes for August 2026.

Summary Security vulnerabilities are addressed with IBM Business Automation Insights 26.0.0-IF002 and 24.0.1-IF009. These vulnerabilities have been also addressed in 24.0.0-IF008 and 25.0.0-IF006 Vulnerability Details CVEID:CVE-2026-11806 DESCRIPTION: IBM WebSphere Application Server - Liberty...

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...

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...

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...

The vulnerability of the lib/nghttp2_session.c component, part of the HTTP/2 implementation by Nghttp2, allows a attacker to cause a service failure.

The vulnerability of the lib/nghttp2session.c component in the HTTP/2 implementation of Nghttp2 is related to the insufficient use of the assert function. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

ROOT-OS-DEBIAN-12-CVE-2026-58055 CVE-2026-58055 in nghttp2 - Patched by Root

Root has patched CVE-2026-58055 in the nghttp2 package for Root:Debian:12. Multiple fixed versions available...

ROOT-OS-DEBIAN-13-CVE-2026-58055 CVE-2026-58055 in nghttp2 - Patched by Root

Root has patched CVE-2026-58055 in the nghttp2 package for Root:Debian:13. Multiple fixed versions available...

Astra Linux – Vulnerability in nghttp2

nghttp2 is an implementation of the Hypertext Transfer Protocol Version 2 in C. The nghttp2 library prior to version 1.61.0 continued to read an unlimited number of HTTP/2 CONTINUATION frames even after a stream was reset, in order to keep the HPACK context synchronized. This caused excessive CPU...

Astra Linux – Vulnerability in Apache2

HTTP/2 incoming headers that exceed the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client continues to send headers, this can lead to memory exhaustion...

Exploit for CVE-2026-56848

CVE-2026-56848 NVD Description A flaw in Node.js HTTP/2...

RHSA-2026:55804 Red Hat Security Advisory: nghttp2 security update

Bulletin has no description...

nghttp2 security update

An update is available for nghttp2. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list libnghttp2 is a library implementing the Hypertext Transfer Protocol version ...

nghttp2 security update

1.33.0-6.3 - fix HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055...

RHEL 8 : nghttp2 (RHSA-2026:55804)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:55804 advisory. libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 HTTP/2 protocol in C. Security Fixes: nghttp2: nghttp2: HTTP...

RockyLinux 8 : nghttp2 (RLSA-2026:55804)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:55804 advisory. nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests CVE-2026-58055 Tenable has extracted the...

Oracle Linux 10 : nodejs22 (ELSA-2026-55541)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-55541 advisory. - Fix for CVE-2026-69152 - Fix for CVE-2026-69192 & CVE-2026-54272 : ip-address - Fix CVE-2026-13149 npm/brace-expansion - Fix for CVE-2026-59873 and...