ALPINE-CVE-2026-2291

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Source
https://security.alpinelinux.org/vuln/CVE-2026-2291
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-2291.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-2291
Upstream
  • CVE-2026-2291
Published
2026-05-11T18:16:31.363Z
Modified
2026-06-15T18:18:11.007573537Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Alpine:v3.22 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.91-r1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-2291.json"

Alpine:v3.23 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.91-r1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-2291.json"

Alpine:v3.24 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:apk/alpine/dnsmasq?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.92_p2-r0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-2291.json"