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CVE-2026-33611

CVE-2026-33611 · Insufficient validation of HTTPS and SVCB records

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.

CVSS 6.5 · Medium · EPSS 0.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • authoritative

    Versions
    • ≥ 5.0.0, < 5.0.4: Affected (semver)
    • ≥ 4.9.0, < 4.9.14: Affected (semver)

    Update to 4.9.14; Update to 5.0.4

  • pdns Debian:12

    Versions
    • 4.7.3-2
    • 4.8.0-1
    • 4.8.0-2
    • 4.8.1-1
    • 4.8.1-2
    • 4.8.2-1
    • 4.8.2-2
    • 4.8.3-1
    • 4.8.3-2
    • 4.8.3-3
    • 4.8.3-4
    • 4.9.0-1
    • 4.9.0-2
    • 4.9.1-1
    • 4.9.1-2
    • 4.9.1-3
    • 4.9.2-1
    • 4.9.2-2
    • 4.9.3-1
    • 4.9.3-2
    • 4.9.3-3
    • 4.9.4-1
    • 4.9.4-2
    • 4.9.7-1
    • 5.0.0-1
    • 5.0.0-2
    • 5.0.1-1
    • 5.0.2-1
    • 5.0.3-1
    • 5.0.4-1
    • 5.0.5-1
    • 5.0.5-2
    • 5.0.5-3
    • 5.0.5-4
    • 5.1.0-1
    • 5.1.1-1
    • 5.1.1-2
    • 5.1.1-3
    • 5.1.2-1
    • 5.1.3-1
    • 5.1.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Debian:13

    Versions
    • 4.9.7-1
    Affected ranges
    • ECOSYSTEM: < 4.9.14-0+deb13u1

    Update to 4.9.14-0+deb13u1

  • pdns Debian:14

    Versions
    • 4.9.7-1
    • 5.0.0-1
    • 5.0.0-2
    • 5.0.1-1
    • 5.0.2-1
    • 5.0.3-1
    Affected ranges
    • ECOSYSTEM: < 5.0.4-1

    Update to 5.0.4-1

  • pdns Ubuntu:Pro:16.04:LTS

    Versions
    • 3.4.5-1build2
    • 3.4.6-2
    • 3.4.6-3
    • 3.4.7-1
    • 3.4.7-2
    • 4.0.0~alpha1-1
    • 4.0.0~alpha2-2
    • 4.0.0~alpha2-3
    • 4.0.0~alpha2-3build1
    • 4.0.0~alpha2-3ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:Pro:18.04:LTS

    Versions
    • 4.0.4-2
    • 4.0.4-2build1
    • 4.0.5-1
    • 4.1.0-1
    • 4.1.0-2
    • 4.1.0-2build1
    • 4.1.1-1
    • 4.1.1-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:Pro:20.04:LTS

    Versions
    • 4.1.6-3build1
    • 4.2.0-1
    • 4.2.1-1
    • 4.2.1-1build1
    • 4.2.1-1build2
    • 4.2.1-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:Pro:22.04:LTS

    Versions
    • 4.4.1-1build1
    • 4.4.1-3
    • 4.4.1-4
    • 4.5.2-1build1
    • 4.5.3-1
    • 4.5.3-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:24.04:LTS

    Versions
    • 4.8.1-1build1
    • 4.8.3-2
    • 4.8.3-2build1
    • 4.8.3-3
    • 4.8.3-4
    • 4.8.3-4build2
    • 4.8.3-4build3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:25.10

    Versions
    • 4.9.4-2
    • 4.9.7-1
    • 4.9.7-1build2
    • 5.0.0-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:26.10

    Versions
    • 5.0.2-1build1
    • 5.0.5-4
    • 5.1.0-1
    • 5.1.1-1
    • 5.1.1-2
    • 5.1.1-3
    • 5.1.2-1
    • 5.1.3-1
    • 5.1.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pdns Ubuntu:26.04:LTS

    Versions
    • 5.0.0-2
    • 5.0.1-1
    • 5.0.2-1
    • 5.0.2-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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