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libxml2

Technology Preview features are not fully supported, may not be functionally complete, and are not suitable for deployment in production.

CVE-2024-34459 is a buffer over-read vulnerability in the xmllint program from the libxml2 package. The flaw occurs in the xmlHTMLPrintFileContext function within xmllint.c when processing crafted files with the --htmlout command line option, potentially causing an application crash and denial of service. This vulnerability is limited to the xmllint program when invoked with --htmlout and does not affect other uses of libxml2 or applications that do not expose xmllint. Red Hat's advisory for Red Hat Update Infrastructure 5.2 includes updated container images incorporating the latest RHUI RPM packages and base images, which address this and multiple other CVEs. No explicit patch details are provided in the advisory, but deployment of updated container images via the rhui-installer utility is recommended.

Detailed information about Red Hat Security Advisory: libxml2 security update affecting Red Hat Product Security Red Hat. Get real-time updates, technical detai

Red Hat Security Advisory: libxml2 security update - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2026:44481

https://access.redhat.com/products/red-hat-update-infrastructure

https://access.redhat.com/security/cve/CVE-2024-34459

https://access.redhat.com/security/cve/CVE-2025-10911

https://access.redhat.com/security/cve/CVE-2025-13151

https://access.redhat.com/security/cve/CVE-2025-5278

https://access.redhat.com/security/cve/CVE-2025-6170

https://access.redhat.com/security/cve/CVE-2026-15308

https://access.redhat.com/security/cve/CVE-2026-31790

https://access.redhat.com/security/cve/CVE-2026-41411

https://access.redhat.com/security/cve/CVE-2026-42055

https://access.redhat.com/security/cve/CVE-2026-44431

https://access.redhat.com/security/cve/CVE-2026-44432

https://access.redhat.com/security/cve/CVE-2026-48864

https://access.redhat.com/security/cve/CVE-2026-5435

https://access.redhat.com/security/cve/CVE-2026-54369

https://access.redhat.com/security/cve/CVE-2026-54370

https://access.redhat.com/security/cve/CVE-2026-5450

https://access.redhat.com/security/cve/CVE-2026-58016

https://access.redhat.com/security/cve/CVE-2026-5928

https://access.redhat.com/errata/RHSA-2026:33313

https://access.redhat.com/security/cve/CVE-2025-71319

https://access.redhat.com/security/cve/CVE-2026-33416

https://access.redhat.com/security/cve/CVE-2026-33636

https://access.redhat.com/security/cve/CVE-2026-8643

https://access.redhat.com/security/cve/CVE-2026-9256

https://access.redhat.com/security/updates/classification/

https://docs.redhat.com/en/documentation/subscription_central/1-latest/#Discovery

Canonical URL

https://access.redhat.com/errata/RHSA-2026:34102

https://access.redhat.com/security/cve/CVE-2026-34180

https://access.redhat.com/security/cve/CVE-2026-34181

https://access.redhat.com/security/cve/CVE-2026-34182

https://access.redhat.com/security/cve/CVE-2026-34183

https://access.redhat.com/security/cve/CVE-2026-35177

https://access.redhat.com/security/cve/CVE-2026-42764

https://access.redhat.com/security/cve/CVE-2026-42766

https://access.redhat.com/security/cve/CVE-2026-42767

https://access.redhat.com/security/cve/CVE-2026-42768

https://access.redhat.com/security/cve/CVE-2026-42769

https://access.redhat.com/security/cve/CVE-2026-42770

https://access.redhat.com/security/cve/CVE-2026-45445

https://access.redhat.com/security/cve/CVE-2026-45446

https://access.redhat.com/security/cve/CVE-2026-45447

https://access.redhat.com/errata/RHSA-2026:26354

https://access.redhat.com/security/updates/classification/#low

2280532

https://access.redhat.com/errata/RHSA-2026:27736

https://access.redhat.com/errata/RHSA-2026:58981

https://access.redhat.com/articles/7141172

https://access.redhat.com/security/cve/CVE-2025-13837

https://access.redhat.com/security/cve/CVE-2025-14087

https://access.redhat.com/security/cve/CVE-2025-14512

https://access.redhat.com/security/cve/CVE-2025-15282

https://access.redhat.com/security/cve/CVE-2025-59375

https://access.redhat.com/security/cve/CVE-2025-6075

https://access.redhat.com/security/cve/CVE-2026-0672

https://access.redhat.com/security/cve/CVE-2026-0865

https://access.redhat.com/security/cve/CVE-2026-11940

https://access.redhat.com/security/cve/CVE-2026-13757

https://access.redhat.com/security/cve/CVE-2026-14164

https://access.redhat.com/security/cve/CVE-2026-1502

Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security update

An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c.

CVE-2024-34459 is a buffer over-read vulnerability identified in the xmllint utility, part of the widely used libxml2 XML parsing library. The issue specifically occurs when xmllint is invoked with the --htmlout option to format error messages. The vulnerability resides in the xmlHTMLPrintFileContext function within xmllint.c, where improper handling of buffer boundaries during error message formatting leads to reading beyond the allocated buffer. This flaw is classified under CWE-122 (Heap-based Buffer Over-read). The vulnerability affects libxml2 versions prior to 2.11.8 and 2.12.x versions before 2.12.7. Exploitation requires no privileges or user interaction and can be triggered remotely by supplying crafted XML input that causes xmllint to generate error messages processed with the --htmlout flag. The buffer over-read can lead to disclosure of sensitive memory contents, impacting confidentiality. Although no exploits have been reported in the wild, the vulnerability's characteristics and the widespread deployment of libxml2 in many Linux distributions, software applications, and embedded systems make it a significant concern. The CVSS v3.1 base score is 7.5, reflecting high severity due to network attack vector, low attack complexity, no privileges required, no user interaction, and a high impact on confidentiality without affecting integrity or availability. The vulnerability underscores the importance of updating to patched versions 2.11.8 or 2.12.7 and beyond to mitigate potential data leakage risks.

Detailed information about CVE-2024-34459: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-34459: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-34459: n/a


Red Hat Security Advisory: Red Hat Update Infrastructure 5.3 Technology Preview security updateCVE-2024-34459 0 Technology Preview features are not fully supported, may not be functionally complete, and are not suitable for deployment in production. CriticalVulnerability#gcve #csaf #cve-2024-34459 Join the discussion	GCVE Database	08/24/2026, 11:15:22 UTC Added: 06/22/2026, 15:51:33 UTC
CVE-2024-34459: n/aCVE-2024-34459 0 An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. Formatting error messages with xmllint --htmlout can result in a buffer over-read in xmlHTMLPrintFileContext in xmllint.c. HighVulnerabilityGermanyFranceUnited Kingdom+6#cve #cve-2024-34459 Join the discussion	CVE Database V5	05/13/2024, 00:00:00 UTC Added: 11/03/2025, 19:38:25 UTC

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