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VULNERABILITIES

CVE-2026-3104 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:6935 redhat-SADP
https://access.redhat.com/security/cve/CVE-2026-3104 redhat-SADP
https://bugzilla.redhat.com/show_bug.cgi?id=2451310 redhat-SADP
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3104.json redhat-SADP
https://downloads.isc.org/isc/bind9/9.20.21 [email protected]Patch

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-401Missing Release of Memory after Effective Lifetime[email protected]
CWE-772Missing Release of Resource after Effective Lifetimeredhat-SADP
CWE-772Missing Release of Resource after Effective Lifetime[email protected]

Affected Products

ProductVersions
isc bind
>= 9.20.0, < 9.20.21
>= 9.21.0, < 9.21.20

CPE

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

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3104
NVD Published Date:
Mar 25, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-3104 Details - Not Deferred