CVE-2026-123574

NameCVE-2026-123574
DescriptionThe zone file parser in the hickory-proto crate of Hickory DNS 0.24.0 before 0.26.2 panics when a single token in a zone file is 4096 bytes or longer. Attackers who can supply untrusted zone files to an application using the parser can trigger the panic to cause a denial of service.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rust-hickory-proto (PTS)trixie0.24.4-2vulnerable
forky, sid0.26.3-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
rust-hickory-protosource(unstable)0.26.3-1

Notes

https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-4rph-pmrw-mwpw

Search for package or bug name: Reporting problems