CVE-2026-33598 — MEDIUM (4.8)

Q: What is CVE-2026-33598?

CVE-2026-33598 is a vulnerability with a CVSS score of 4.8 (MEDIUM). A cached crafted response can cause an out-of-bounds read if custom Lua code calls getDomainListByAddress() or getAddressListByDomain() on a packet cache.

Q: How severe is CVE-2026-33598?

CVE-2026-33598 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-33598?

Check the references section above for vendor advisories and patch information. Affected products include: Powerdns Dnsdist.

Vulnerability Description

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

CVSS Score

4.8

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Powerdns	Dnsdist	>= 1.9.0, < 1.9.13

Related Weaknesses (CWE)

CWE-125

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-0Vendor Advisory

FAQ

What is CVE-2026-33598?

CVE-2026-33598 is a vulnerability with a CVSS score of 4.8 (MEDIUM). A cached crafted response can cause an out-of-bounds read if custom Lua code calls getDomainListByAddress() or getAddressListByDomain() on a packet cache.

How severe is CVE-2026-33598?

CVE-2026-33598 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-33598?

Check the references section above for vendor advisories and patch information. Affected products include: Powerdns Dnsdist.