CVSS 4.0
6.9 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-123581 hickory-dns hickory-dns
Medium (6.9) in hickory-dns hickory-dns. EPSS 0.1% estimated probability of exploitation activity in the next 30 days. Fixed in hickory-proto 0.26.0-beta.1.
On this page
Hickory DNS hickory-proto through 0.26.0-alpha.1 and hickory-net 0.26.0-beta.1 before 0.26.2 contain a DNSSEC validation flaw that accepts a response as a positive answer when any valid RRset appears in the answer section, without checking that the RRset is responsive to the query. Attackers can supply signed but unrelated RRsets so that responses lacking matching records are validated as positive answers instead of as no-data responses.
Severity
CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- EPSS
- 0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-345 Insufficient Verification of Data Authenticity
- OWASP Top 10
- A08:2025 Software or Data Integrity Failures
- Published
- Modified
- Assigned by
- VulnCheck (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| hickory-dns | through 0.26.0-alpha.1 |
| hickory-dns | from 0.26.0-beta.1 before 0.26.2 |
Fix and patched versions
hickory-proto(crates.io): fixed in 0.26.0-beta.1hickory-net(crates.io): fixed in 0.26.2- Debian: fixed package versions per release
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| RUSTSEC-2026-0512 | crates.io | hickory-proto | >=0.0.0-0 <0.26.0-beta.1 | 0.26.0-beta.1 |
| RUSTSEC-2026-0520 | crates.io | hickory-net | >=0.0.0-0 <0.26.2 | 0.26.2 |
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 13, 14 | rust-hickory-proto | no fix listed | DEBIAN-CVE-2026-123581 |
| Debian | 14 | rust-hickory-net | 0.26.3-1 | DEBIAN-CVE-2026-123581 |
| Ubuntu | 24.04:LTS, 26.04:LTS | rust-hickory-proto | no fix listed | UBUNTU-CVE-2026-123581 |
| Ubuntu | 26.10 | rust-hickory-net, rust-hickory-proto | no fix listed | UBUNTU-CVE-2026-123581 |
| Azure Linux | 3 | netavark | no fix listed | AZL-113218 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; Microsoft's Azure Linux vulnerability data, MIT. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-345 (12).
History
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.