DEBIAN-CVE-2026-3591

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Source

https://security-tracker.debian.org/tracker/CVE-2026-3591

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-3591.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-3591

Upstream

CVE-2026-3591

Published

2026-03-25T14:16:37.297Z

Modified

2026-03-29T00:02:54.127352Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator

Summary

[none]

Details

A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure. 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.

References

https://security-tracker.debian.org/tracker/CVE-2026-3591

Affected packages

Debian:13 / bind9

Package

Name: bind9
Purl: pkg:deb/debian/bind9?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.20.21-1~deb13u1

Affected versions

1:9.*

1:9.20.11-4

1:9.20.15-1~deb13u1~bpo12+1

1:9.20.15-1~deb13u1

1:9.20.15-1

1:9.20.15-2

1:9.20.18-1~deb13u1~bpo12+1

1:9.20.18-1~deb13u1

1:9.20.18-1

1:9.20.19-1~bpo12+1

1:9.20.19-1

1:9.20.20-1~bpo12+1

1:9.20.20-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-3591.json"

Debian:14 / bind9