CVE-2026-40209
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Denial of service via IXFR queries
An attacker might be able to cause outgoing TCP connections to backend to be stuck until a timeout occurs instead of being released immediately, by sending IXFR queries. This could be used to cause a denial of service if there is a limit to the number of concurrent connections to this backend, or if the process runs out of file descriptors.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
DNSdist
- Vendor
- PowerDNS
- Product
- DNSdist
- Platforms
- Unknown
- Default status
unaffected- Package
- dnsdist
- Package collection
- https://repo.powerdns.com/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.9.0 | affected | semver | 1.9.15 | Unavailable | None listed |
| 2.0.0 | affected | semver | 2.0.7 | Unavailable | None listed |