Improper Validation of Syntactic Correctness of Input

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Improper Validation of Syntactic Correctness of Input in the processing of HTTP/2 request headers. An attacker can cause unexpected behavior or potentially...

Exploit for Double Free in Apache Http_Server

CVE-2026-23918 Double-free in Apache httpd modhttp2 stream c...

BIT-GOLANG-2026-33814 Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

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...

RHEL 10 : libsoup3 (RHSA-2026:15968)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:15968 advisory. Libsoup is an HTTP library implementation in C. It was originally part of a SOAP Simple Object Access Protocol implementation called Soup,...

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...

ai.new-wave:spring-agent-app (>=0.1.0 <=0.3.0), ai.new-wave:spring-agent-core (>=0.1.0 <=0.3.0) +2632 more potentially affected by CVE-2026-42587 via io.netty:netty-codec-http2 (>=4.2.0.Alpha1 <=4.2.12.Final)

io.netty:netty-codec-http2 MAVEN version =4.2.0.Alpha1, =0.1.0, =0.1.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.2 and more Source cves: CVE-2026-42587 Source advisory: OSV:GHSA-F6HV-JMP6-3VWV...

ai.agentican:agentican-framework-core (>=0.1.0-alpha.2 <=0.1.0-alpha.4), ai.agentican:agentican-quarkus-deployment (>=0.1.0-alpha.1 <=0.1.0-alpha.4) +19906 more potentially affected by CVE-2026-42587 via io.netty:netty-codec-http2 (>=4.1.0.Beta4 <=4.1.132.Final)

io.netty:netty-codec-http2 MAVEN version =4.1.0.Beta4, =0.1.0-alpha.2, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0-alpha.2, =0.1.0, =0.1.0, =0.2.0, =0.2.0, =0.28.0 and more Source cves:...

ai.new-wave:spring-agent-app (>=0.1.0 <=0.3.0), ai.new-wave:spring-agent-core (>=0.1.0 <=0.3.0) +2632 more potentially affected by CVE-2026-42587 via io.netty:netty-codec-http2 (>=4.2.0.Alpha1 <=4.2.12.Final)

io.netty:netty-codec-http2 MAVEN version =4.2.0.Alpha1, =0.1.0, =0.1.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.0, =26.3.2 and more Source cves: CVE-2026-42587 Source advisory: SNYK:JAVA-IONETTY-16438929...

ai.agentican:agentican-framework-core (>=0.1.0-alpha.2 <=0.1.0-alpha.4), ai.agentican:agentican-quarkus-deployment (>=0.1.0-alpha.1 <=0.1.0-alpha.4) +19906 more potentially affected by CVE-2026-42587 via io.netty:netty-codec-http2 (>=4.1.0.Beta4 <=4.1.132.Final)

io.netty:netty-codec-http2 MAVEN version =4.1.0.Beta4, =0.1.0-alpha.2, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0-alpha.2, =0.1.0, =0.1.0, =0.2.0, =0.2.0, =0.28.0 and more Source cves:...

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,...