MGASA-2026-0571

    Dashboard / Vulnerabilities / MGASA-2026-0571

    MGASA-2026-0571

    Published: 2 Nov 2026Last Modified: 2 Nov 2026

    Summary: Updated unbound package fixes security vulnerabilities

    Details: Bypass of a configured island trust anchor underneath an insecure parent from an attacker-controlled NSEC record. Possible insecure NXDOMAIN for non-existing records under a configured island trust anchor underneath an insecure parent. Aggregate DNS name chained pointer decompression work leads to degradation of service. DNS-over-QUIC path-migration can lead to use-after-free on multi-threaded deployments. Possible cache poisoning vulnerability via a cache side-channel exposed by 'unwanted-reply-threshold'.

    References: https://advisories.mageia.org/MGASA-2026-0571.html, https://bugs.mageia.org/show_bug.cgi?id=36568, https://nlnetlabs.nl/projects/unbound/security-advisories/

    Affected packages

    Package

    Name: unbound

    Purl: pkg:rpm/mageia/unbound?arch=source&distro=mageia-10

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.26.2-1.mga10

    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
    MGASA-2026-0571 | CVE-DB