Missing Release of Resource after Effective Lifetime Affecting bind package, versions [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-15812207
- published29 Mar 2026
- disclosed25 Mar 2026
- creditUnknown
Introduced: 25 Mar 2026
CVE-2026-3104 (opens in a new tab)How to fix?
Upgrade bind to version 9.20.21, 9.21.20 or higher.
Overview
Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime via the resolver process. An attacker can exhaust system memory resources by sending specially crafted domain queries over the network, potentially causing service disruption for legitimate users.
Workaround
This vulnerability can be mitigated by restricting access to the resolver to trusted clients only, such as by configuring firewall rules to limit inbound connections to port 53 (UDP/TCP) from authorized IP addresses or networks, or by configuring the service to listen only on specific trusted interfaces or localhost.