CVE-2026-19033
EUVD-2026-8078116.09.2026, 15:17
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.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources
(CNA/ADP records, vendor advisories, Enginsight analysis).
| Vendor | Product | Version | Source |
|---|---|---|---|
| isc | bind | 9.11.0 ≤ 𝑥 ≤ 9.18.50 | CNA |
| isc | bind | 9.20.0 ≤ 𝑥 ≤ 9.20.27 | CNA |
| isc | bind | 9.21.0 ≤ 𝑥 ≤ 9.21.25 | CNA |
Debian Releases
Ubuntu Releases
Ubuntu Product | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bind9 |
| ||||||||||||||
| isc-dhcp |
| ||||||||||||||
| bind9-libs |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bind |
| ||||||||||||||||||||
| bind-chrootenv |
| ||||||||||||||||||||
| bind-devel |
| ||||||||||||||||||||
| bind-doc |
| ||||||||||||||||||||
| bind-utils |
| ||||||||||||||||||||
| libbind9-161 |
| ||||||||||||||||||||
| libdns1110 |
| ||||||||||||||||||||
| libirs161 |
| ||||||||||||||||||||
| libisc1107 |
| ||||||||||||||||||||
| libisc1107-32bit |
| ||||||||||||||||||||
| libisccc161 |
| ||||||||||||||||||||
| libisccfg163 |
| ||||||||||||||||||||
| liblwres161 |
| ||||||||||||||||||||
| python-bind |
| ||||||||||||||||||||
| python3-bind |
|
Amazon Linux Releases
Amazon Package | |||||
|---|---|---|---|---|---|
| bind |
| ||||
| bind-chroot |
| ||||
| bind-debuginfo |
| ||||
| bind-debugsource |
| ||||
| bind-devel |
| ||||
| bind-dnssec-utils |
| ||||
| bind-dnssec-utils-debuginfo |
| ||||
| bind-doc |
| ||||
| bind-export-devel |
| ||||
| bind-export-libs |
| ||||
| bind-libs |
| ||||
| bind-libs-debuginfo |
| ||||
| bind-libs-lite |
| ||||
| bind-license |
| ||||
| bind-lite-devel |
| ||||
| bind-pkcs11 |
| ||||
| bind-pkcs11-devel |
| ||||
| bind-pkcs11-libs |
| ||||
| bind-pkcs11-utils |
| ||||
| bind-sdb |
| ||||
| bind-sdb-chroot |
| ||||
| bind-utils |
| ||||
| bind-utils-debuginfo |
|
Common Weakness Enumeration
Vulnerability Media Exposure