DEBIAN-CVE-2026-19033

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Source
https://security-tracker.debian.org/tracker/CVE-2026-19033
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19033.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-19033
Upstream
  • CVE-2026-19033
Published
2026-09-16T15:17:33Z
Modified
2026-10-28T00:00:28Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
Summary
[none]
Details

For a secondary zone with transfers restricted by TSIG, named may start to serve the data provided in a zone transfer before the final message with the TSIG signature arrives. This could allow an attacker that does not actually possess a valid TSIG signature to send unauthorized zone contents to a secondary server. Although no TSIG signature ever arrives, named does not rollback to the pre-transfer state. To exploit the vulnerability, the transfer must be a multi-message TCP IXFR, as described by RFC 8945. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

References

Affected packages

Debian:12 / bind9

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.18.49-1~deb12u3

Affected versions

1:9.*
1:9.18.12-1
1:9.18.13-1
1:9.18.16-1~deb12u1~bpo11+1
1:9.18.16-1~deb12u1
1:9.18.16-1
1:9.18.19-1~deb12u1~bpo11+1
1:9.18.19-1~deb12u1
1:9.18.24-1~bpo11+1
1:9.18.24-1
1:9.18.28-1~deb12u1
1:9.18.28-1~deb12u2
1:9.18.33-1~deb12u2
1:9.18.41-1~deb12u1
1:9.18.44-1~deb12u1
1:9.18.47-1~deb12u1
1:9.18.49-1~deb12u1
1:9.18.49-1~deb12u2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19033.json"

Debian:13 / bind9

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.20.29-1~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
1:9.20.21-1~deb13u1~bpo12+1
1:9.20.21-1~deb13u1
1:9.20.21-1
1:9.20.22-1
1:9.20.23-1~deb13u1~bpo12+1
1:9.20.23-1~deb13u1
1:9.20.23-1
1:9.20.24-1
1:9.20.26-1~deb13u1~bpo12+1
1:9.20.26-1~deb13u1
1:9.20.26-1
1:9.20.27-1
1:9.20.27-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19033.json"

Debian:14 / bind9

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:9.20.29-1

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
1:9.20.21-1~deb13u1~bpo12+1
1:9.20.21-1~deb13u1
1:9.20.21-1
1:9.20.22-1
1:9.20.23-1~deb13u1~bpo12+1
1:9.20.23-1~deb13u1
1:9.20.23-1
1:9.20.24-1
1:9.20.26-1~deb13u1~bpo12+1
1:9.20.26-1~deb13u1
1:9.20.26-1
1:9.20.27-1
1:9.20.27-2
1:9.20.29-1~deb13u1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-19033.json"