CVE-2026-3104

A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*

History

30 Jun 2026, 03:19

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:6935 -
  • () https://access.redhat.com/security/cve/CVE-2026-3104 -
  • () https://bugzilla.redhat.com/show_bug.cgi?id=2451310 -
  • () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3104.json -

21 May 2026, 15:26

Type Values Removed Values Added
Summary
  • (es) Un dominio especialmente diseñado puede usarse para causar una fuga de memoria en un resolvedor BIND simplemente al consultar este dominio. Este problema afecta a las versiones de BIND 9 desde la 9.20.0 hasta la 9.20.20, desde la 9.21.0 hasta la 9.21.19, y desde la 9.20.9-S1 hasta la 9.20.20-S1. Las versiones de BIND 9 desde la 9.18.0 hasta la 9.18.46 y desde la 9.18.11-S1 hasta la 9.18.46-S1 NO se ven afectadas.
First Time Isc bind
Isc
CWE CWE-401
CPE cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
References () https://downloads.isc.org/isc/bind9/9.20.21 - () https://downloads.isc.org/isc/bind9/9.20.21 - Patch
References () https://downloads.isc.org/isc/bind9/9.21.20 - () https://downloads.isc.org/isc/bind9/9.21.20 - Patch
References () https://kb.isc.org/docs/cve-2026-3104 - () https://kb.isc.org/docs/cve-2026-3104 - Vendor Advisory

25 Mar 2026, 14:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-25 14:16

Updated : 2026-06-30 03:19


NVD link : CVE-2026-3104

Mitre link : CVE-2026-3104

CVE.ORG link : CVE-2026-3104


JSON object : View

Products Affected

isc

  • bind
CWE
CWE-772

Missing Release of Resource after Effective Lifetime

CWE-401

Missing Release of Memory after Effective Lifetime