Incorrect Control Flow Scoping Affecting dnsdist package, versions [,1.9.15)[2.0.0,2.0.7)
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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- published28 Jun 2026
- disclosed25 Jun 2026
- creditUnknown
Introduced: 25 Jun 2026
CVE-2026-40208 (opens in a new tab)How to fix?
Upgrade dnsdist to version 1.9.15, 2.0.7 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Control Flow Scoping through the processing of DoH3 GET queries containing an invalid DATA frame. An attacker can cause delays in query processing by sending specially crafted requests.