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CVE-2026-27831

rldns is an open source DNS server.

Published Feb 26, 2026 · updated Jun 17, 2026

rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.

Code

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Timeline

Detection, updates, and resolution for this record.

  1. Feb 26, 2026 · NIST NVD

    Detected

    rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.

  2. Jun 17, 2026 · NIST NVD

    Updated

    rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.

Sources

  • NIST NVDVulnerability recordCVE-2026-27831

    rldns is an open source DNS server. Version 1.3 has a heap-based out-of-bounds read that leads to denial of service. Version 1.4 contains a patch for the issue.

    nvd.nist.gov

References

CVE-2026-27831 · ZeroDay Findings