CVE-2026-12246 Affecting nsd package, versions <4.14.3-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE324-NSD-17482255
- published25 Jun 2026
- disclosed25 Jun 2026
Introduced: 25 Jun 2026
CVE-2026-12246 (opens in a new tab)How to fix?
Upgrade Alpine:3.24 nsd to version 4.14.3-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nsd package and not the nsd package as distributed by Alpine.
See How to fix? for Alpine:3.24 relevant fixed versions and status.
NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes.