Description
Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because cached data is not directly associated with a query that triggered a response.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Hickory Project | Hickory DNS | 0.1 – < 0.26 | 0.26 |
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 13 | rust-hickory-recursor | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | rust-hickory-recursor | No fix yet | — |
| Ubuntu 26.04 LTS | rust-hickory-recursor | No fix yet | — |
| Ubuntu 25.10 | rust-hickory-recursor | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | hickory-recursor | >= 0.24.0, < 0.26.0 | 0.26.0 | GHSA-83hf-93m4-rgwq |
| crates.io | hickory-recursor | 0.1 | — | GHSA-83hf-93m4-rgwq |