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Details of issue NIXPKGS-2026-0238

NIXPKGS-2026-0238
published on 15 Feb 2026
Permalink CVE-2026-26076
updated 3 weeks ago by @LeSuisse Activity log
  • Created automatic suggestion 3 weeks, 3 days ago
  • @LeSuisse accepted 3 weeks ago
  • @LeSuisse published on GitHub 3 weeks ago
ntpd-rs affected by excessive CPU load from malformed packets

ntpd-rs is a full-featured implementation of the Network Time Protocol. Prior to 1.7.1, an attacker can remotely induce moderate increases (2-4 times above normal) in cpu usage. When having NTS enabled on an ntpd-rs server, an attacker can create malformed NTS packets that take significantly more effort for the server to respond to by requesting a large number of cookies. This can lead to degraded server performance even when a server could otherwise handle the load. This vulnerability is fixed in 1.7.1.

References

Affected products

ntpd-rs
  • ==< 1.7.1

Matching in nixpkgs

Package maintainers

Upstream advisory: https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-c7j7-rmvr-fjmv
Upstream patch: https://github.com/pendulum-project/ntpd-rs/commit/fa73af14d17b666b1142b9fee3ba22c18a841d24