CVE-2026-27831

Impact

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.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://github.com/bluedragonsecurity/rldns-1.3-heap-out-of-bounds-vulnerability-fixed-in-rldns-1.4
• https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4
• https://github.com/bluedragonsecurity/rldns_archives/blob/main/diff/rldns-1.4.diff
• https://medium.com/@w1sdom/heap-based-buffer-over-read-vulnerability-in-rldns-1-3-5da3bccdc031
• https://github.com/bluedragonsecurity/rldns/security/advisories/GHSA-fv38-45j4-g9x4