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
Related
Published
2026-05-20T13:16:23.923Z
Modified
2026-07-08T08:12:59.255993776Z
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 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.20.0"
        },
        {
            "fixed": "9.20.23"
        },
        {
            "introduced": "9.21.0"
        },
        {
            "fixed": "9.21.22"
        }
    ]
}

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 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.20.0"
        },
        {
            "fixed": "9.20.23"
        },
        {
            "introduced": "9.21.0"
        },
        {
            "fixed": "9.21.22"
        }
    ]
}

Database specific

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