CVE-2026-78437 Apache Tomcat: HTTP/2 DoS via malformed request

Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially depends on timing cause one request from another user to fail. This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121. Users are...

CVE-2026-78437 Apache Tomcat: HTTP/2 DoS via malformed request

Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially depends on timing cause one request from another user to fail. This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121. Users are...

EUVD-2026-85227

Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in Apache Tomcat allows an attacker to inject trailer fields into another HTTP/2 request. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from...

CVE-2026-77762

Apache Tomcat is vulnerable to a race condition caused by concurrent execution using a shared resource with improper synchronization. This flaw allows an attacker to inject trailer fields into another HTTP/2 request via a stale HPACK emitter injecting into a recycled pooled request. Affected vers...

CVE-2026-77762

Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in Apache Tomcat allows an attacker to inject trailer fields into another HTTP/2 request. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from...

CVE-2026-77762 Apache Tomcat: Stale HPACK emitter injects trailers into recycled pooled Request

Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in Apache Tomcat allows an attacker to inject trailer fields into another HTTP/2 request. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from...

CVE-2026-77762 Apache Tomcat: Stale HPACK emitter injects trailers into recycled pooled Request

Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in Apache Tomcat allows an attacker to inject trailer fields into another HTTP/2 request. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from...

CVE-2026-96446

A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is already logged in. Due to this bypass, the security rule that...

CVE-2026-96446 Keycloak-services: keycloak-services: par single-use bypass via prompt=none silent authentication path

A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is already logged in. Due to this bypass, the security rule that...

CVE-2026-96446

A flaw exists in the Keycloak Pushed Authorization Request (PAR) implementation where the silent authentication path (prompt=none ) allows the authorization process to skip specific steps for already logged-in users. This bypass prevents the enforcement of the security rule requiring a pushed req...

EUVD-2026-85221

A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is already logged in. Due to this bypass, the security rule that...

CLSA-2026-1790161417 TuxCare security update for markdown-it (1 CVE)

TuxCare rebuilt markdown-it to address 1 CVE. Fixed in 4.4.0-tuxcare.2...

CLSA-2026-1790161409 TuxCare security update for adm-zip (2 CVEs)

TuxCare rebuilt adm-zip to address 2 CVEs. Fixed in 0.6.0-tuxcare.2...

Unbounded Memory Consumption

Http4s is vulnerable to unbounded memory consumption. The vulnerability is due to HTTP/2 header blocks and CONTINUATION fragments being buffered without a size limit, which allows a remote attacker to keep an incomplete header block open and exhaust heap memory, potentially causing denial of...

CVE-2026-61720

A flaw was found in FluidSynth, a software synthesizer. A remote attacker could exploit an unsigned integer underflow vulnerability in the SoundFont 2 SF2 parser by providing a specially crafted SF2 file. This file, containing a zero-sized DMOD chunk, causes the parser to attempt an excessive...

CVE-2026-71418

A flaw was found in Suricata, a network Intrusion Detection System, Intrusion Prevention System, and Network Security Monitoring engine. Its DNS-over-HTTP/2 processing incorrectly retains previously processed HTTP/2 DATA frame contents. A remote attacker can exploit this by sending multiple craft...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.19.48 security and extras update

Red Hat OpenShift Container Platform release 4.19.48 is now available with updates to packages and images that fix several bugs. This release includes a security update for Red Hat OpenShift Container Platform 4.19. Red Hat Product Security has rated this update as having a security impact of...

net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service

A flaw was found in the net/http component of the Go standard library. When a server is configured to support unencrypted HTTP/2, it reads initial bytes from new connections to detect the HTTP/2 client preface. However, the ReadHeaderTimeout is not correctly applied during this process. This...

CLEANSTART-2026-YT00725 baseline-browser-mapping 2

Security vulnerability affects the qdrant package. baseline-browser-mapping 2...

CVE-2026-59980: Uncontrolled Resource Consumption

hpack is an HTTP/2 Header Encoding for Python. Prior to version 4.2.0, unbounded variable integer decoding can cause run-away computation on malformed input leading to On^2 runtime, effectively blocking further processing with large enough unsanitized input. A fix is available in python-hyper/hpa...