vulnerability
Alpine Linux: CVE-2021-26720: Link Following
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Feb 17, 2021 | Mar 26, 2024 | Mar 25, 2026 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Feb 17, 2021
Added
Mar 26, 2024
Modified
Mar 25, 2026
Description
avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create arbitrary empty files via a symlink attack on files under /run/avahi-daemon. NOTE: this only affects the packaging for Debian GNU/Linux (used indirectly by SUSE), not the upstream Avahi product.
Solution
alpine-linux-upgrade-avahi
Rapid7 Labs
2026 Global Threat Landscape Report
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