CVE-2026-33593 Affecting dnsdist package, versions <2.0.4-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-ALPINE323-DNSDIST-16152839
- published23 Apr 2026
- disclosed22 Apr 2026
Introduced: 22 Apr 2026
CVE-2026-33593 (opens in a new tab)How to fix?
Upgrade Alpine:3.23 dnsdist to version 2.0.4-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dnsdist package and not the dnsdist package as distributed by Alpine.
See How to fix? for Alpine:3.23 relevant fixed versions and status.
A client can trigger a divide by zero error leading to crash by sending a crafted DNSCrypt query.