Buffer Over-read Affecting dnsdist package, versions [1.9.0-alpha0,1.9.12)[2.0.0-alpha0,2.0.3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-DNSDIST-15915725
  • published6 Apr 2026
  • disclosed31 Mar 2026
  • creditUnknown

Introduced: 31 Mar 2026

NewCVE-2026-24028  (opens in a new tab)
CWE-126  (opens in a new tab)

How to fix?

Upgrade dnsdist to version 1.9.12, 2.0.3 or higher.

Overview

Affected versions of this package are vulnerable to Buffer Over-read via the newDNSPacketOverlay process. An attacker can cause a crash or access unrelated memory by sending a specially crafted DNS response packet when custom Lua code is used to parse DNS packets.

References

CVSS Base Scores

version 4.0
version 3.1