Acceptance of Extraneous Untrusted Data With Trusted Data Affecting pdns-recursor package, versions [,5.1.8)[5.2.0-alpha1,5.2.6)[5.3.0-alpha1,5.3.1)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.12% (3rd percentile)

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-PDNSRECURSOR-15252995
  • published10 Feb 2026
  • disclosed9 Feb 2026
  • creditYuxiao Wu, Yunyi Zhang, Baojun Liu, Haixin Duan, Shiming Liu

Introduced: 9 Feb 2026

CVE-2025-59024  (opens in a new tab)
CWE-349  (opens in a new tab)

How to fix?

Upgrade pdns-recursor to version 5.1.8, 5.2.6, 5.3.1 or higher.

Overview

Affected versions of this package are vulnerable to Acceptance of Extraneous Untrusted Data With Trusted Data due to the improper validation of delegation information. An attacker can inject malicious entries into the cache by sending specially crafted delegations or fragmented IP packets.

CVSS Base Scores

version 4.0
version 3.1