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...

Security update for curl

This update for curl fixes the following issues: CVE-2026-7168: cross-proxy Digest auth state leak bsc1263440. CVE-2026-8286: wrong STARTTLS connection reuse bsc1268402. CVE-2026-8458: wrong reuse for different services bsc1268407. CVE-2026-8924: traling dot domain super cookie bsc1268409...

CVE-2023-44487

HTTP/2 Rapid Reset: CVE-2023-44487 Descrizione Questo repository contiene il codice proof-of-concept PoC per la vulnerabilità HTTP/2 Rapid Reset identificata come CVE-2023-44487. Panoramica della vulnerabilità ID CVE : CVE-2023-44487 Impatto : Denial of Service DoS Protocolli interessati : HTTP/2...

CVE-2026-58094

The FIOSSHMLPGCNF ioctl2 operation configures the page size for a largepage shared memory object. This is intended to be used immediately after creating the object, before any memory is allocated for the object. The handler checked whether a page size had already been configured without holding t...

Improper Validation of Unsafe Equivalence in Input

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Improper Validation of Unsafe Equivalence in Input in the HTTP/2 request handling. An attacker can bypass strict SNI validation by...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 backlog tracking when a stream is reset. An attacker can exhaust system resources by repeatedl...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat:tomcat is an implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 backlog tracking when a...

Allocation of Resources Without Limits or Throttling

Overview org.apache.tomcat:tomcat-coyote is a Tomcat Connectors and HTTP parser. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the HTTP/2 backlog tracking when a stream is reset. An attacker can exhaust system resources by repeatedly...

EUVD-2026-66190

Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog tracking when a stream is reset This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.39 through 9.0.120. The following versions were...

net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame

A flaw was found in the HTTP/2 protocol implementation within the Go standard library golang.org/x/net and net/http/internal/http2. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGSMAXFRAMESIZE parameter set to zero. This...

Important: Red Hat Security Advisory: Red Hat build of MicroShift 4.16.69 security update

Red Hat build of MicroShift release 4.16.69 is now available with updates to packages and images that include a security update. 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...

PT-2026-81978

The Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the theme's 'icon box 2' shortcode in all versions up to, and including, 28.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers...

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...

Amazon Linux 2 : ipa, --advisory ALAS2-2026-3877 (ALAS-2026-3877)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3877 advisory. A flaw was found in FreeIPA. When a trust relationship is configured between FreeIPA and Active Directory, Active Directory users can bypass authentication for FreeIPA services, including the...

CVE-2026-58094: Time-of-check Time-of-use (TOCTOU) Race Condition

The FIOSSHMLPGCNF ioctl2 operation configures the page size for a largepage shared memory object. This is intended to be used immediately after creating the object, before any memory is allocated for the object. The handler checked whether a page size had already been configured without holding t...

TencentOS Server 2: openssl (TSSA-2026:0881)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0881 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities...

PT-2026-82292

This is a classic "roundup" post. Since the summary is generic "top threats you should know about" and the source is a vendor F5, I need to assume this is a curated list of multiple events. I will treat this as Scenario A Technical Threat but structure it as a digest of multiple items, pulling fr...

Linux Distros Unpatched Vulnerability : CVE-2026-44476

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public...

Linux Distros Unpatched Vulnerability : CVE-2026-68763

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Uncontrolled Resource Consumption vulnerability in Apache Tomcat via an allocation leak in the HTTP/2 backlog tracking when a stream is reset This issue affects...

RHCOS 4 : Red Hat build of MicroShift 4.16.69 (RHSA-2026:57845)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:57845 advisory. - net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGSMAXFRAMESIZE frame...