bind9: An attacker can cause `named` to abort by sending a crafted DNS-over-HTTPS request with a cryptographically invalid S...
CVE-2026-77692 is fixed in 6 products on 1 platform, first by bind9 1:9.20.24-1ubuntu0.4, released September 16, 2026. It is not reported as exploited. Patch Radar priority: High.
An attacker can cause `named` to abort by sending a crafted DNS-over-HTTPS request with a cryptographically invalid SIG(0) record, and then closing the transport connection prematurely. This issue affects BIND 9 versions 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, and 9.20.9-S1 through 9.20.27-S1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bind · opensuse-leap 16.0 | 9.20.29-160000.1.1 | OPENSUSE-SU-2026:22049-1 | Oct 7, 2026 |
| bind · sles 15.7 | 9.20.29-150700.3.32.2 | SUSE-SU-2026:4285-1 | Sep 22, 2026 |
| bind · sles 16.0 | 9.20.29-160000.1.1 | SUSE-SU-2026:24157-1 | Oct 7, 2026 |
| bind9 · Debian 13.5 (trixie) | 1:9.20.29-1~deb13u1 | DEBIAN-CVE-2026-77692 | Sep 18, 2026 |
| bind9 · Debian 14 | 1:9.20.29-1 | DEBIAN-CVE-2026-77692 | Sep 18, 2026 |
| bind9 · Ubuntu 26.04.1 LTS (resolute) | 1:9.20.24-1ubuntu0.4 | bind9 1:9.20.24-1ubuntu0.4 | Sep 16, 2026 |
| bind9-dnsutils · Ubuntu 26.04.1 LTS (resolute) | 1:9.20.24-1ubuntu0.4 | bind9-dnsutils 1:9.20.24-1ubuntu0.4 | Sep 16, 2026 |
| bind9-host · Ubuntu 26.04.1 LTS (resolute) | 1:9.20.24-1ubuntu0.4 | bind9-host 1:9.20.24-1ubuntu0.4 | Sep 16, 2026 |
| bind9-libs · Ubuntu 26.04.1 LTS (resolute) | 1:9.20.24-1ubuntu0.4 | bind9-libs 1:9.20.24-1ubuntu0.4 | Sep 16, 2026 |
| bind9-utils · Ubuntu 26.04.1 LTS (resolute) | 1:9.20.24-1ubuntu0.4 | bind9-utils 1:9.20.24-1ubuntu0.4 | Sep 16, 2026 |
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