USN-8744-1

    Dashboard / Vulnerabilities / USN-8744-1

    USN-8744-1

    Published: 10 Sept 2026Last Modified: 10 Sept 2026

    Summary: python2.7, python3.4, python3.5, python3.6, python3.7, python3.8, python3.9, python3.10, python3.11, python3.12, python3.14 vulnerabilities

    Details: It was discovered that Python's http.cookies module incorrectly handled control characters in certain cookie operations. An attacker could possibly use this issue to inject arbitrary content. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-3644) It was discovered that the Python pyexpat module was vulnerable to unbounded recursion in the Expat XML parser. An attacker could possibly use this issue to cause Python to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-4224) It was discovered that Python's tarfile module did not correctly apply the filter parameter when extracting hard links. An attacker could possibly use this issue to cause files to be extracted with an unexpected uid or gid, bypassing the restrictions requested via filter='data'. (CVE-2026-4360) It was discovered that Python's http.cookies module incorrectly escaped values in the js_output() method. An attacker could possibly use this issue to inject arbitrary JavaScript. (CVE-2026-6019) It was discovered that Python's html.parser module incorrectly handled repeated unterminated markup declarations. An attacker could possibly use this issue to cause Python to consume excessive CPU resources, leading to a denial of service. (CVE-2026-15308)

    References: https://ubuntu.com/security/notices/USN-8744-1, https://ubuntu.com/security/CVE-2026-3644, https://ubuntu.com/security/CVE-2026-4224, https://ubuntu.com/security/CVE-2026-4360, https://ubuntu.com/security/CVE-2026-6019, https://ubuntu.com/security/CVE-2026-15308

    Affected packages

    Package

    Name: python2.7

    Purl: pkg:deb/ubuntu/python2.7?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.7.6-8ubuntu0.6+esm30

    Affected versions

    2.7.5-8ubuntu3
    2.7.5-8ubuntu4
    2.7.6-2
    2.7.6-2ubuntu1
    2.7.6-3
    2.7.6-3ubuntu1
    2.7.6-4
    2.7.6-4ubuntu1
    2.7.6-5
    2.7.6-7
    2.7.6-8
    2.7.6-8ubuntu0.2
    2.7.6-8ubuntu0.3
    2.7.6-8ubuntu0.4
    2.7.6-8ubuntu0.5
    2.7.6-8ubuntu0.6+esm2
    2.7.6-8ubuntu0.6+esm3
    2.7.6-8ubuntu0.6+esm5
    2.7.6-8ubuntu0.6+esm6
    2.7.6-8ubuntu0.6+esm7
    2.7.6-8ubuntu0.6+esm8
    2.7.6-8ubuntu0.6+esm9
    2.7.6-8ubuntu0.6+esm10
    2.7.6-8ubuntu0.6+esm11
    2.7.6-8ubuntu0.6+esm12
    2.7.6-8ubuntu0.6+esm13
    2.7.6-8ubuntu0.6+esm14
    2.7.6-8ubuntu0.6+esm15
    2.7.6-8ubuntu0.6+esm16
    2.7.6-8ubuntu0.6+esm17
    2.7.6-8ubuntu0.6+esm18
    2.7.6-8ubuntu0.6+esm20
    2.7.6-8ubuntu0.6+esm21
    2.7.6-8ubuntu0.6+esm22
    2.7.6-8ubuntu0.6+esm24
    2.7.6-8ubuntu0.6+esm25
    2.7.6-8ubuntu0.6+esm26
    2.7.6-8ubuntu0.6+esm28
    2.7.6-8ubuntu0.6+esm29

    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-8744-1 | CVE-DB