Security Advisory catalog CVE-2026-123606 Historical advisory recorded 8 Nov 2026 03:06:35 UTC. Read the latest advisory .
cve-program · CVE-2026-123606 Published
The hickory-dns recursor in hickory-recursor 0.25.0-alpha.3 through 0.25.2 and hickory-resolver 0.26.0-alpha.1 before 0.26.2 iterates every out-of-bailiwick NS target lacking glue in a referral without any per-query work budget. Remote attackers can serve such referrals to force A and AAAA lookups per target, amplifying traffic against remote servers or exhausting recursor resources.
Read the publisher's advisory Affected versions, risk and source history
cve-program · CVE-2026-123606 Published hickory-dns Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "hickory-dns",
"product": "hickory-dns",
"defaultStatus": "unaffected",
"packageURL": "pkg:cargo/hickory-recursor",
"versions": [
{
"version": "0.25.0-alpha.3",
"status": "affected",
"versionType": "semver",
"lessThanOrEqual": "0.25.2"
}
]
} hickory-dns Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "hickory-dns",
"product": "hickory-dns",
"defaultStatus": "unaffected",
"packageURL": "pkg:cargo/hickory-resolver",
"versions": [
{
"version": "0.26.0-alpha.1",
"status": "affected",
"versionType": "semver",
"lessThan": "0.26.2"
},
{
"version": "0.26.2",
"status": "unaffected",
"versionType": "semver"
}
]
} Original source record · Cite this exact observation · Complete original publisher JSON