CVE-2026-0398
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.3.5, 5.2.8, 5.1.10
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- pdns-recursor
From 5.3.0 · fixed in 5.3.5; From 5.2.0 · fixed in 5.2.8; From 5.1.0 · fixed in 5.1.10