medium4.8
CVE-2026-27854
An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua cod…
Impact
An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Powerdns | Dnsdist | from 1.9.0 before 1.9.12 from 2.0.0 before 2.0.3 |