CVE-2026-33598 PUBLISHED

Out-of-bounds read in cache inspection via Lua

Assigner: OX
Reserved: 23.03.2026 Published: 22.04.2026 Updated: 22.04.2026

A cached crafted response can cause an out-of-bounds read if custom Lua code calls getDomainListByAddress() or getAddressListByDomain() on a packet cache.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
CVSS Score: 4.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	PowerDNS
Product	DNSdist
Versions	Default: unaffected affected from 1.9.0 to 1.9.13 (excl.) affected from 2.0.0 to 2.0.4 (excl.)

Credits

ylwango613 finder

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html

Problem Types

Out-of-bounds Read CWE