CVEvulnerability
CVE-2026-4893
5.3 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-05-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Description
An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client subnet information.
References
- https://github.com/NixOS/nixpkgs/pull/519082 github.com
- https://github.com/NixOS/nixpkgs/pull/519093 github.com
- https://github.com/pi-hole/FTL/releases/tag/v6.6.2 github.com
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html lists.thekelleys.org.uk
- https://thekelleys.org.uk/dnsmasq/CVE/ thekelleys.org.uk
- https://www.kb.cert.org/vuls/id/471747 www.kb.cert.org