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Ubuntu Libxml2 Important DoS and Memory Leak Issues USN-8460

Ubuntu Libxml2 Important DoS and Memory Leak Issues USN-8460

Linuxsecurity •LinuxSecurity Advisories • June 22, 2026

Several security issues were fixed in libxml2. Software Description: - libxml2: GNOME XML library Details: It was discovered that libxml2 did not properly release memory allocated in the xmllint utility. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-1757) A type confusion vulnerability was found in libxml2 when processing a specially crafted XML document. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2026-6732)

Several security issues were fixed in libxml2.

Software Description:

- libxml2: GNOME XML library

It was discovered that libxml2 did not properly release memory allocated in

the xmllint utility. An attacker could possibly use this issue to cause a

denial of service. (CVE-2026-1757)

A type confusion vulnerability was found in libxml2 when processing a

specially crafted XML document. A remote attacker could possibly use this

issue to cause a denial of service. (CVE-2026-6732)

The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS libxml2-16 2.15.2+dfsg-0.1ubuntu0.1 libxml2-dev 2.15.2+dfsg-0.1ubuntu0.1 libxml2-source 2.15.2+dfsg-0.1ubuntu0.1 libxml2-utils 2.15.2+dfsg-0.1ubuntu0.1 python3-libxml2 2.15.2+dfsg-0.1ubuntu0.1 Ubuntu 25.10 libxml2-16 2.14.5+dfsg-0.2ubuntu0.2 libxml2-dev 2.14.5+dfsg-0.2ubuntu0.2 libxml2-utils 2.14.5+dfsg-0.2ubuntu0.2 python3-libxml2 2.14.5+dfsg-0.2ubuntu0.2 In general, a standard system update will make all the necessary changes.

CVE-2026-1757, CVE-2026-6732

Ubuntu Security Notice USN-8460-1

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Extracted Entities

Attack Types (1)

CWE Weaknesses (1)