CVE-2026-2291
HIGH7.3EPSS 0.08%Published: 5/11/2026Modified: 5/23/2026
Also known as:ALPINE-CVE-2026-2291DEBIAN-CVE-2026-2291
Description
dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS.
Affected packages (2)
- Alpine/dnsmasqfrom 0, < 2.91-r1
- Debian/dnsmasqfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |