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TI-2026-30695 Aliases CVE-2026-42396GHSA-hm6h-mcgv-h2x8

Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail

Priority LOW 29CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00353 29th percentileScored 2026-11-07
Fix Fixed Authoritative (PowerDNS): 4.9.15, 5.0.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PowerDNSAuthoritative4.9.0 to before 4.9.15; 5.0.0 to before 5.0.54.9.15, 5.0.5Patch availableCNA
  • Authoritative VendorPowerDNS Affected 4.9.0 to before 4.9.15; 5.0.0 to before 5.0.5 Fixed in 4.9.15, 5.0.5 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*4.7.0 to before 4.9.15; 5.0.0 to before 5.0.5VulnerablePowerDNS
  • cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* Versions 4.7.0 to before 4.9.15; 5.0.0 to before 5.0.5 Vulnerable ·PowerDNS

Remediation

  • Fix · CNA Authoritative (PowerDNS) Fixed in 4.9.15, 5.0.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PowerDNS Authoritative 4.9.15, 5.0.5

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-30390 Insufficient Validation of Autoprimary SOA QueriesPriority LOW 39
    • TI-2026-30389 Insufficient Validation of Names During AXFRPriority LOW 37
    • TI-2026-30391 Concurrency and locking defects in GSS-TSIGPriority LOW 32
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42396
  2. 2026-10-03 Alias added: GHSA-hm6h-mcgv-h2x8
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Other 1

  • TI-2015-01678 The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and… CVSS 2.0HIGH 7.8
  • TI-2016-04703 PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . CVSS 3.0HIGH 7.5
  • TI-2015-04466 PowerDNS (aka pdns) Authoritative Server 3.4.4 before 3.4.7 allows remote attackers to… CVSS 2.0MEDIUM 5.0
  • TI-2016-04702 PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a… CVSS 3.0HIGH 7.5
  • TI-2026-25990 Incomplete domain name sanitization during CVSS 3.1CRITICAL 9.8
  • TI-2020-15157 An issue was discovered in PowerDNS Authoritative through 4.3.0 when… CVSS 3.1CRITICAL 9.8
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences