CVE-2026-3593

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Source
https://cve.org/CVERecord?id=CVE-2026-3593
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3593.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-3593
Downstream
ALPINE (1)
AZL (1)
BELL (1)
DEBIAN (1)
ECHO (1)
MGASA (1)
MINI (1)
openSUSE (2)
RHSA (1)
SUSE (3)
UBUNTU (1)
Related
openSUSE (2)
SUSE (3)
Published
2026-05-20T13:16:23Z
Modified
2026-10-20T12:01:53Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.

References

Affected packages

Git / github.com/isc-projects/bind9

Affected ranges

Type
GIT
Repo
https://github.com/isc-projects/bind9
Events
Introduced
14bbdfc7b9db0870a0b8941ca8812d9983fdba1a
Fixed
7d0b4d4d436e7b950225a533e5bc56d8f935cc1c
Introduced
b732da695eecc0526950e2c722cde0bf23e5a070
Fixed
02a7b2c8a549b79cf885d1a0cda28b74de22d197
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range":  [
                {
                    "introduced":  "9.20.0"
                },
                {
                    "fixed":  "9.20.23"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range":  [
                {
                    "introduced":  "9.21.0"
                },
                {
                    "fixed":  "9.21.22"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3593.json"

Git / gitlab.isc.org/isc-projects/bind9

Affected ranges

Type
GIT
Repo
https://gitlab.isc.org/isc-projects/bind9
Events
Introduced
14bbdfc7b9db0870a0b8941ca8812d9983fdba1a
Fixed
7d0b4d4d436e7b950225a533e5bc56d8f935cc1c
Introduced
b732da695eecc0526950e2c722cde0bf23e5a070
Fixed
02a7b2c8a549b79cf885d1a0cda28b74de22d197
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range":  [
                {
                    "introduced":  "9.20.0"
                },
                {
                    "fixed":  "9.20.23"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
            "range":  [
                {
                    "introduced":  "9.21.0"
                },
                {
                    "fixed":  "9.21.22"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3593.json"