UBUNTU-CVE-2026-54058

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    UBUNTU-CVE-2026-54058

    Published: 14 Jul 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-54058
    Aliases:
    USN-8999-1

    Summary:

    Details: Pillow is a Python imaging library. Prior to 12.3.0, when Pillow loads an uncompressed McIdas AREA image from a filename through the mmap raw codec path, attacker-controlled header words can set a row stride smaller than the natural row width, causing pixel access such as Image.tobytes(), getpixel, convert, or save to read beyond the mapped region and disclose adjacent process memory or fault. This issue is fixed in version 12.3.0.

    References: https://ubuntu.com/security/CVE-2026-54058, https://www.cve.org/CVERecord?id=CVE-2026-54058, https://github.com/python-pillow/Pillow/security/advisories/GHSA-62p4-gmf7-7g93, https://github.com/python-pillow/Pillow/pull/9719, https://github.com/python-pillow/Pillow/releases/tag/12.3.0, https://ubuntu.com/security/notices/USN-8999-1

    Affected packages

    Package

    Name: pillow

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.2.1-1ubuntu2
    2.2.1-2ubuntu1
    2.2.1-3ubuntu2
    2.2.1-3ubuntu3
    2.2.1-3ubuntu4
    2.2.1-3ubuntu6

    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
    UBUNTU-CVE-2026-54058 | CVE-DB