cve-2026-49975-http2bomb_reproduction

CVE-2026-49975 HTTP/2 Bomb Complete Reproduction Guide Based on QiAnXin CERT Advisory + Calif Original Research ================================================================ I. Vulnerability Overview CVE-2026-49975 is a critical denial-of-service DoS vulnerability in HTTP/2 server and proxy...

AlmaLinux 9.2 [TuxCare] Security Update: containernetworking-plugins Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1762538558)

The AlmaLinux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1762538558 advisory. - A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of...

CLEANSTART-2026-MM56894 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

Security vulnerability affects the sonarqube package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

Security Bulletin: Denial of Service Security Vulnerability in Apache HttpComponents Core affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2026-54428)

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerability Vulnerability Details CVEID:CVE-2026-54428 DESCRIPTION: Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier,...

Astra Linux – Vulnerability in golang-golang-x-net, golang-1.19

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, enough to trigger a denial of service due to a small number of small requests...

PT-2026-82110

Name of the Vulnerable Software and Affected Versions Http4s versions prior to 0.23.35 Http4s versions prior to 1.0.0-M47 Description An unauthenticated HTTP/2 peer can cause an out-of-memory denial of service in the Ember backend when HTTP/2 is enabled. The issue resides in the Hpack wrapper...

org.apache.httpcomponents.core5/httpcore5-h2: Apache HttpComponents Core: Denial of Service via oversized HTTP/2 HPACK header blocks

A flaw was found in Apache HttpComponents Core. This vulnerability, located in the HTTP/2 HPACK decoder, allows a remote attacker to cause a denial of service. By sending oversized compressed header blocks, an attacker can exhaust memory resources before the system's configured header list size...

Security Bulletin:Vulnerability in httpcore5 affects IBM Netezza Appliance

Summary The httpcore5 package is used by IBM Netezza Appliance. IBM Netezza Appliance has addressed the applicable CVEsCVE-2026-54428 Vulnerability Details CVEID:CVE-2026-54428 DESCRIPTION: Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents...

CVE-2026-65100 Apache Traffic Server: HPACK encoder desynchronizes from the decoder after a failed header encode

Apache Traffic Server updates the HTTP/2 HPACK dynamic table before confirming the header block encoded successfully, so an encode failure leaves the encoder out of sync with the peer decoder and corrupts subsequent header blocks on the connection. This issue affects Apache Traffic Server: from...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the lack of enforced limits in the HPackDecoder process. An attacker can exhaust system memory by sending oversized compressed header blocks before the HTTP/2 SETTINGS...

GHSA-V3JC-474W-2WM6 Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

DEBIAN-CVE-2026-54428

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

CVE-2026-54428 Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

CVE-2026-54428

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

CVE-2026-54428 Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

PT-2026-54843

Name of the Vulnerable Software and Affected Versions Apache HttpComponents Core versions prior to 5.4.3 Apache HttpComponents Core versions prior to 5.5-beta2 Description An issue exists in the HTTP/2 HPACK decoder where resources are allocated without limits or throttling. A remote attacker can...

CVE-2026-54428: Allocation of Resources Without Limits or Throttling

Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2...

Ubuntu 22.04 LTS / 24.04 LTS : Go Networking vulnerabilities (USN-8089-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8089-1 advisory. Bahruz Jabiyev, Tommaso Innocenti, Anthony Gavazzi, Steven Sprecher, and Kaan Onarlioglu discovered that servers using Go Networking could ha...

USN-8089-1: Go Networking vulnerabilities

Bahruz Jabiyev, Tommaso Innocenti, Anthony Gavazzi, Steven Sprecher, and Kaan Onarlioglu discovered that servers using Go Networking could hang during shutdown if preempted by a fatal error. An attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 22.04 LT...