Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

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Exploit for Double Free in Apache Http_Server

CVE-2026-23918 "Apache HTTP/2 Double-Free" — Detection & Respo...

Apache mod_http2 Double-Free Detector

This is a python script that assist with detecting whether or not a server is vulnerable to the Apache modhttp2 double-free vulnerability...

CVE-2026-33814

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0...

Infinite loop

Overview std/net/http is a Go standard library package std/net/http Affected versions of this package are vulnerable to Infinite loop. Go Vulnerability Report: When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a...

Exploit for Double Free in Apache Http_Server

CVE-2026-23918 Apache modhttp2 Double-Free Detector ht...

CLSA-2026-1778107205 Fix CVE(s): CVE-2026-23918

SECURITY UPDATE: double free / possible RCE in modhttp2 stream purge - debian/patches/CVE-2026-23918.patch: deduplicate inserts into the spurge array in modules/http2/h2mplx.c via a new addforpurge helper to prevent the same h2stream from being freed twice. - CVE-2026-23918...

USN-8233-2: nghttp2 vulnerability

USN-8233-1 fixed a vulnerability in nghttp2. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory details: Andrew MacPherson discovered that nghttp2 did not properly validate internal state when the session termination API was called. A remote attacker could...

CLSA-2026-1778070287 mod_http2: Fix of CVE-2026-23918

CVE-2026-23918: fix double free via double stream purge in modhttp2...

PT-2026-38541

USN-8233-1 fixed a vulnerability in nghttp2. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory details: Andrew MacPherson discovered that nghttp2 did not properly validate internal state when the session termination API was called. A remote attacker could...

GHSA-Q8X4-X7MP-5VG2 Plug.Cowboy vulnerable to unauthenticated remote DoS via HTTP/2 `:scheme` atom-table exhaustion

Summary An unauthenticated remote denial-of-service vulnerability in Plug.Cowboy.Conn allows any attacker who can reach an HTTPS Plug.Cowboy listener via HTTP/2 to permanently exhaust the BEAM atom table and crash the entire Erlang VM. Am I Affected? All users running plugcowboy with HTTP/2 may b...

FreeBSD : www/apache24 -- Multiple vulnerabilities (1ccc383b-486a-11f1-8b62-8447094a420f)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 1ccc383b-486a-11f1-8b62-8447094a420f advisory. The Apache httpd project reports: modproxyajp: CVE-2026-34059, CVE-2026-34032, CVE-2026-33857,...

[slackware-security] httpd

New httpd packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: patches/packages/httpd-2.4.67-i586-1slack15.0.txz: Upgraded. This release fixes bugs and the following security issues: modproxyajp: Heap Over-Read and...

CVE-2026-23918 Apache HTTP Server: http2: double free and possible RCE on early reset

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...

Authorization Bypass

google.golang.org/grpc is vulnerable to authorization bypass. The vulnerability is due to improper validation of the HTTP/2 :path pseudo-header, which allows an attacker to send malformed requests without a leading slash and bypass path-based authorization policies when fallback "allow" rules are...

CVE-2026-42788

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated memory exhaustion via oversized HTTP/2 frames. 'Elixir.Bandit.HTTP2.Frame':deserialize/2 in lib/bandit/http2/frame.ex checks the SETTINGSMAXFRAMESIZE limit only after pattern-matching...

CVE-2026-32688

Allocation of Resources Without Limits or Throttling vulnerability in elixir-plug plugcowboy allows unauthenticated remote denial of service via atom table exhaustion. Plug.Cowboy.Conn.conn/1 in lib/plug/cowboy/conn.ex calls String.toatom/1 on the value returned by :cowboyreq.scheme/1. For HTTP/2...

Important: Red Hat Security Advisory: rhc security update

An update for rhc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

PT-2026-47331

Name of the Vulnerable Software and Affected Versions Apache HTTP Server versions 2.4.55 through 2.4.67 Description A Use After Free issue exists in the mod http2 module of Apache HTTP Server, which occurs when file handles are already exhausted. Use After Free is a memory corruption flaw where a...

SUSE-SU-2026:21370-1 Security update for ignition

This update for ignition fixes the following issue: - CVE-2026-33186: Fixed an authorization bypass due to improper validation of the HTTP/2: path pseudo-header bsc1260251...