PT-2026-42447 · Powerdns · Powerdns

Lazarux0X1337 · Published 2026-05-21 · Updated 2026-05-22 · CVE-2026-42001

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions PowerDNS (affected versions not specified)

Description Insufficient validation of Autoprimary SOA queries can lead to server crashes, GSS-TSIG memory corruption, and view data leaks. GSS-TSIG is a mechanism used to secure DNS communications using the Generic Security Service Application Program Interface.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-42001

Affected Products

Powerdns

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42001.json · Exploit
• https://cve.org/CVERecord?id=CVE-2026-42001 · Security Note
• https://ubuntu.com/security/CVE-2026-42001 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-42001 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-42001 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-42001 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-42001 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42001 · Security Note
• https://github.com/PowerDNS/pdns · Note
• https://github.com/PowerDNS/pdns/commit/4459ba81e6674039e40bf15f177424f6b52cdd90 · Note
• https://repo.powerdns.com · Note
• https://twitter.com/the_yellow_fall/status/2057619192514478521 · Twitter Post
• https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-06.html#insufficient-validation-of-autoprimary-soa-queries · Note
• https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html · Note
• https://t.me/CVEtracker/54488 · Telegram Post