PT-2026-48916

Name of the Vulnerable Software and Affected Versions Netty versions prior to 4.1.135.Final Netty versions prior to 4.2.15.Final Description Netty HTTP/2 max header size handling allows for an attack similar to HTTP/2 Rapid Reset. When a client sends the SETTINGS MAX HEADER LIST SIZE setting, the...

GHSA-5375-PQ7M-F5R2 @grpc/grpc-js: A malformed request can cause a server crash

Impact An invalid incoming HTTP/2 stream initiation can cause a server process to crash. This affects all servers created using @grpc/grpc-js. Patches The following version have fixes for this vulnerability: - 1.9.16 - 1.10.12 - 1.11.4 - 1.12.7 - 1.13.5 - 1.14.4 Workarounds There is no workaround...

USN-8417-1: Tomcat vulnerabilities

It was discovered that Tomcat did not properly limit the size of WebDAV LOCK and PROPFIND request bodies. A remote attacker could use this issue to cause Tomcat to consume excessive memory, resulting in a denial of service. CVE-2026-41284 It was discovered that Tomcat incorrectly validated HTTP/2...

Exploit for CVE-2026-42926

CVE-2026-42926 NGINX HTTP/2 Frame Injection Lab A controlled...

Debian dsa-6323 : apache2 - security update

The remote Debian 12 / 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6323 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6323-1 [email protected] https://www.debian.org/security/...

RHEL 10 : mod_http2 (RHSA-2026:22528)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:22528 advisory. The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: Apache HTTP...

Security update for ignition

This update for ignition fixes the following issue CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE bsc1265751. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...

RLSA-2026:22551 Moderate: mod_http2 security update

The modh2 Apache httpd module implements the HTTP2 protocol h2+h2c on top of libnghttp2 for httpd 2.4 servers. Security Fixes: httpd: Apache HTTP Server: HTTP/2 DoS by Memory Increase CVE-2025-53020 For more details about the security issues, including the impact, a CVSS score, acknowledgments, a...

openSUSE 16 Security Update : libsoup (openSUSE-SU-2026:20845-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20845-1 advisory. This update for libsoup fixes the following issue - CVE-2026-4271: use-after-free in the HTTP/2 server when user signal handlers disconnect connections...

Security update for libsoup (important)

openSUSE security update: security update for libsoup ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20845-1 Rating: important References: bsc1259767 Cross-References: CVE-2026-4271 CVSS scores: CVE-2026-4271 SUSE : 8.6...

OPENSUSE-SU-2026:20845-1 Security update for libsoup

This update for libsoup fixes the following issue - CVE-2026-4271: use-after-free in the HTTP/2 server when user signal handlers disconnect connections during callback execution bsc1259767...

Amazon Linux 2023 : runfinch-finch (ALAS2023-2026-1741)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1741 advisory. When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. CVE-2026-33811 When processing HTTP/2 SETTINGS frames, transport...

Amazon Linux 2023 : golang, golang-bin, golang-misc (ALAS2023-2026-1743)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1743 advisory. When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. CVE-2026-33811 When processing HTTP/2 SETTINGS frames, transport...

Important: amazon-ecr-credential-helper

Issue Overview: When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. CVE-2026-33811 When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a...

Amazon Linux 2023 : amazon-ecr-credential-helper (ALAS2023-2026-1738)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1738 advisory. When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. CVE-2026-33811 When processing HTTP/2 SETTINGS frames, transport...

Astra Linux - уязвимость в jetty9

In the Eclipse Jetty HTTP/2 server implementation, when encountering an invalid HTTP/2 request, the error handling has a bug that may result in the active connections and associated resources not being properly cleaned up. This can lead to a Denial of Service scenario, where there are not enough...

Critical Apache HTTP/2 Flaw (CVE-2026-23918) Enables DoS and Potential RCE

The Apache Software Foundation ASF has released security updates to address several security vulnerabilities in the HTTP Server, including a severe vulnerability that could potentially lead to remote code execution RCE. The vulnerability, tracked as CVE-2026-23918 CVSS score: 8.8, has been...

ALPINE-CVE-2026-23918

Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue...

JLSEC-2026-416 When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of...

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit 1000, libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead lea...

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

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request’s headers exceed MaxHeaderBytes, no...