OESA-2026-4539

    Dashboard / Vulnerabilities / OESA-2026-4539

    OESA-2026-4539

    Published: 29 Oct 2026Last Modified: 29 Oct 2026
    Upstream:
    CVE-2026-111497

    Summary: brotli security update

    Details: Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression. Security Fix(es): A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.(CVE-2026-111497)

    References: https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4539, https://nvd.nist.gov/vuln/detail/CVE-2026-111497

    Affected packages

    Package

    Name: brotli

    Purl: pkg:rpm/openEuler/brotli&distro=openEuler-24.03-LTS-SP4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.1.1-1.oe2403sp4

    Affected versions

    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
    OESA-2026-4539 | CVE-DB