USN-8787-1

    Dashboard / Vulnerabilities / USN-8787-1

    USN-8787-1

    Published: 21 Sept 2026Last Modified: 21 Sept 2026

    Summary: libxml2 vulnerabilities

    Details: It was discovered that libxml2 incorrectly handled certain XML elements under certain circumstances. An attacker could possibly use this issue to cause libxml2 to crash or execute arbitrary code. (CVE-2026-86140) It was discovered that libxml2 incorrectly handled certain XML documents when used with Python bindings. A remote attacker could possibly use this issue to cause applications using libxml2 to crash, resulting in a denial of service. (CVE-2026-74860)

    References: https://ubuntu.com/security/notices/USN-8787-1, https://ubuntu.com/security/CVE-2026-74860, https://ubuntu.com/security/CVE-2026-86140

    Affected packages

    Package

    Name: libxml2

    Purl: pkg:deb/ubuntu/libxml2?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.9.1+dfsg1-3ubuntu4.13+esm12

    Affected versions

    2.9.1+dfsg1-3ubuntu2
    2.9.1+dfsg1-3ubuntu3
    2.9.1+dfsg1-3ubuntu4
    2.9.1+dfsg1-3ubuntu4.1
    2.9.1+dfsg1-3ubuntu4.2
    2.9.1+dfsg1-3ubuntu4.3
    2.9.1+dfsg1-3ubuntu4.4
    2.9.1+dfsg1-3ubuntu4.5
    2.9.1+dfsg1-3ubuntu4.6
    2.9.1+dfsg1-3ubuntu4.7
    2.9.1+dfsg1-3ubuntu4.8
    2.9.1+dfsg1-3ubuntu4.9
    2.9.1+dfsg1-3ubuntu4.10
    2.9.1+dfsg1-3ubuntu4.11
    2.9.1+dfsg1-3ubuntu4.12
    2.9.1+dfsg1-3ubuntu4.13
    2.9.1+dfsg1-3ubuntu4.13+esm1
    2.9.1+dfsg1-3ubuntu4.13+esm2
    2.9.1+dfsg1-3ubuntu4.13+esm3
    2.9.1+dfsg1-3ubuntu4.13+esm4
    2.9.1+dfsg1-3ubuntu4.13+esm5
    2.9.1+dfsg1-3ubuntu4.13+esm6
    2.9.1+dfsg1-3ubuntu4.13+esm7
    2.9.1+dfsg1-3ubuntu4.13+esm8
    2.9.1+dfsg1-3ubuntu4.13+esm9
    2.9.1+dfsg1-3ubuntu4.13+esm10
    2.9.1+dfsg1-3ubuntu4.13+esm11

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-8787-1 | CVE-DB