Unchecked Input for Loop Condition Affecting bind package, versions [9.11.0,9.18.47)[9.20.0,9.20.21)[9.21.0,9.21.20)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-BIND-15812208
- published29 Mar 2026
- disclosed25 Mar 2026
- creditUnknown
Introduced: 25 Mar 2026
CVE-2026-1519 (opens in a new tab)How to fix?
Upgrade bind to version 9.18.47, 9.20.21, 9.21.20 or higher.
Overview
Affected versions of this package are vulnerable to Unchecked Input for Loop Condition in the DNSSEC validation process. An attacker can exhaust system resources by sending a maliciously crafted DNSSEC-validated zone to a resolver, resulting in service disruption for legitimate users. This is only exploitable if the server is configured for DNSSEC validation or if an authoritative server is configured to perform recursive queries.
Workaround
This vulnerability can be mitigated by disabling DNSSEC validation on affected resolvers or configuring the server as authoritative-only if recursive queries are not required. A restart of the service is required for these changes to take effect.