CVE-2026-12245 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-17484457
- published25 Jun 2026
- disclosed25 Jun 2026
Introduced: 25 Jun 2026
CVE-2026-12245 (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 from version 4.13.0 has a heap use-after-free bug in logging errors on TLS connections, causing a crash of the server process, which can be triggered trivially by sending a DNS query over a DoT connection, and closing the connection without reading the response.