CVE-2026-33260
Insufficient input validation of internal webserver
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 5.0.4, 4.9.14, 1.9.13, 2.0.4, 5.4.1, and 2 more
- 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
An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- pdns
From 5.0.0 · fixed in 5.0.4; From 4.9.0 · fixed in 4.9.14
- dnsdist
From 1.9.0 · fixed in 1.9.13; From 2.0.0 · fixed in 2.0.4
- pdns-recursor
From 5.4.0 · fixed in 5.4.1; From 5.3.0 · fixed in 5.3.6; From 5.2.0 · fixed in 5.2.9