Missing Release of Resource after Effective Lifetime Affecting bind package, versions [9.18.0,9.19.0)[9.20.0,9.20.29)[9.21.0,9.21.26)
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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- published24 Sept 2026
- disclosed16 Sept 2026
- creditUnknown
Introduced: 16 Sep 2026
NewCVE-2026-81563 (opens in a new tab)How to fix?
Upgrade bind to version 9.19.0, 9.20.29, 9.21.26 or higher.
Overview
Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime through repeated processing of specially crafted SVCB/HTTPS AliasMode records in the resolver process. An attacker can exhaust internal resources by sending numerous malicious records, ultimately preventing new recursive lookups and disrupting service availability.