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Description

An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly closed, but in some cases the system might enter an out-of-memory state instead and terminate the process.

PUBLISHED Reserved 2026-01-20 | Published 2026-03-31 | Updated 2026-03-31 | Assigner OX




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

Uncontrolled Memory Allocation

Product status

Default status
unaffected

1.9.0 (semver) before 1.9.12
affected

2.0.0 (semver) before 2.0.3
affected

Credits

XavLimSG finder

References

www.dnsdist.org/...owerdns-advisory-for-dnsdist-2026-02.html

cve.org (CVE-2026-24030)

nvd.nist.gov (CVE-2026-24030)

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