Description
An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PowerDNS | Authoritative | 5.0.0 – < 5.0.4, 4.9.0 – < 4.9.14 | 5.0.4 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pdns | 5.0.4-1 | — |
| Debian 13 | pdns | 4.9.14-0+deb13u1 | — |
| Debian 12 | pdns | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | pdns | No fix yet | — |
| Ubuntu 26.04 LTS | pdns | No fix yet | — |
| Ubuntu 25.10 | pdns | No fix yet | — |
| Ubuntu 24.04 LTS | pdns | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | pdns | No fix yet | — |
| Ubuntu Pro 20.04 LTS | pdns | No fix yet | — |
| Ubuntu Pro 18.04 LTS | pdns | No fix yet | — |
| Ubuntu Pro 16.04 LTS | pdns | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pdns | 5.0.4-r0 | — |
| Alpine v3.23 | pdns | 5.0.4-r0 | — |
Advisories 1
- WID-SEC-2026-1236 PowerDNS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 5, 2026