The vulnerability of the lzma_indexAppend() function in the XZ compression data compression package allows a hacker to execute arbitrary code.

The vulnerability of the lzmaindexAppend function in the XZ Utils data compression package is related to buffer overflows in dynamic memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

Unity Linux 20.1070e Security Update: xz (UTSA-2026-014304)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014304 advisory. XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that...

Photon OS 5.0: Xz PHSA-2026-5.0-0830

An update of the xz package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2026-5.0-0830. The text itself is copyright C VMware, Inc. include'compat.inc'; if description scriptid310101...

Moderate Photon OS Security Update - PHSA-2026-5.0-90-0830

Updates of 'xz' packages of Photon OS have been released...

Critical Photon OS Security Update - PHSA-2026-5.0-91-0830

Updates of 'ImageMagick', 'expat', 'vim', 'xz', 'linux', 'openssh', 'python3-tornado', 'go', 'linux-esx' packages of Photon OS have been released...

Critical Photon OS Security Update - PHSA-2026-5.0-0830

Updates of 'python3-tornado', 'vim', 'openssh', 'linux', 'xz', 'linux-esx', 'ImageMagick', 'expat', 'go' packages of Photon OS have been released...

OESA-2026-1853 xz security update

XZ Utils is free general-purpose data compression software with a high compression ratio. XZ Utils were written for POSIX-like systems, but also work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils. Security Fixes: XZ Utils provide a general-purpose data-compression library...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: xz: xz-5.8.3-1.1.hum1 aarch64, x8664 xz-devel-5.8.3-1.1.hum1 aarch64, x8664 xz-libs-5.8.3-1.1.hum1 aarch64, x8664 xz-lzma-compat-5.8.3-1.1.hum1 aarch64, x8664 xz-static-5.8.3-1.1.hum1 aarch64,...

CBL Mariner 2.0 Security Update: CBL-Mariner Releases (CVE-2026-34743)

The version of CBL-Mariner Releases installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-34743 advisory. - XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to...

Azure Linux 3.0 Security Update: CBL-Mariner Releases (CVE-2026-34743)

The version of CBL-Mariner Releases installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2026-34743 advisory. - XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to...

Beyond Single Reports: Evaluating Automated ATT&CK Technique Extraction in Multi-Report Campaign Settings

Large-scale cyberattacks, referred to as campaigns, are documented across multiple CTI reports from diverse sources, with some providing a high-level overview of attack techniques and others providing technical details. Extracting attack techniques from reports is essential for organizations to...

ROOT-OS-DEBIAN-12-CVE-2026-34743 CVE-2026-34743 in rootio-xz-utils - Patched by Root

Root has patched CVE-2026-34743 in the rootio-xz-utils package for Root:Debian:12. Multiple fixed versions available...

Mageia: Security Advisory (MGASA-2026-0084)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Updated xz packages fix security vulnerability

Buffer overflow in lzmaindexappend. CVE-2026-34743...

MGASA-2026-0084 Updated xz packages fix security vulnerability

Buffer overflow in lzmaindexappend. CVE-2026-34743...

XZ Utils: Buffer overflow in lzma_index_append()

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CVE-2026-34743

A flaw was found in XZ Utils. When the lzmaindexdecoder function processes an empty index, and a subsequent lzmaindexappend operation is performed, insufficient memory is allocated. This can lead to a buffer overflow, potentially causing a denial of service DoS for affected systems...

ALPINE-CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...

UBUNTU-CVE-2026-34743

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzmaindexdecoder was used to decode an Index that contained no Records, the resulting lzmaindex was left in a state where where a subsequent lzmaindexappend would allocate too little...