CVE-2026-27854 describes a medium-severity use-after-free vulnerability (CWE-416) in DNSdist, which can be triggered by sending crafted DNS queries when custom Lua code utilizes the `DNSQuestion:getEDNSOptions` method. This remote vulnerability has high attack complexity, as it relies on specific conditions, and primarily poses a risk of denial of service due to a potential crash. There is currently no evidence of active exploitation, no public exploit code available, and minimal community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.9.0, < 1.9.12CPE matchmatch criteria | cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* | ||
>= 2.0.0, < 2.0.3CPE matchmatch criteria | cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.