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Vulnerability record · CVE-2026-33608 · published 22 April 2026

CVE-2026-33608: Powerdns authoritative code injection vulnerability

Powerdns · Authoritative

An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.

9.8 CVSS 3.1 Critical EPSS 0.59% · top 53.8% CWE-94 · Code injection
9.8CVSS 3.1 base score
0.59%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.html Broken LinkVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-24698Powerdns authoritative double free vulnerabilityAn issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker might…EPSS 3.2%8.6CVE-2026-42000Powerdns authoritative command injection vulnerabilityInsufficient Validation of Names During AXFREPSS 0.54%8.1CVE-2020-24696Powerdns authoritative race condition vulnerabilityAn issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can t…EPSS 1.4%7.8CVE-2015-5470Powerdns authoritative vulnerabilityThe label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x…EPSS 11%7.8CVE-2015-1868PowerDNS label decompression self-referential name denial of serviceThe label decompression code in PowerDNS Recursor (3.5.x, 3.6.x before 3.6.3, 3.7.x before 3.7.2) and Authoritative Server (3.2.x, 3.3.x before 3.3.2…EPSS 82%analysed7.5CVE-2026-42001Powerdns authoritative uncontrolled resource consumption vulnerabilityInsufficient Validation of Autoprimary SOA QueriesEPSS 0.80%7.5CVE-2026-42002Powerdns authoritative vulnerabilityConcurrency and locking defects in GSS-TSIGEPSS 0.58%7.5CVE-2026-33610Powerdns authoritative uncontrolled resource consumption vulnerabilityA rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS updat…EPSS 0.73%

Source: NIST National Vulnerability Database (record CVE-2026-33608), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.