GHSA-6f2x-v7q7-m7m5: hickory-resolver fixed in 0.26.2

GHSA-6f2x-v7q7-m7m5 PUBLISHED CVSS 5.300000190734863 MEDIUM

hickory-resolver follows irrelevant CNAME records

Record from GitHub Advisory Database · Published October 5, 2026

hickory-resolver is fixed in 0.26.2 (crates.io)

hickory-resolver follows irrelevant CNAME records

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
hickory-resolver	crates.io	0.26.2
sccache	Chainguard	0.18.0-r2
ntpd-rs	Wolfi	1.9.0-r6
vector	Chainguard	0.59.0-r2
shadowsocks-rust	Wolfi	1.25.0-r2
ntpd-rs	Chainguard	1.9.0-r6
linkerd2-proxy	Wolfi	2.370.0-r3
vector	Wolfi	0.59.0-r2
sccache	Wolfi	0.18.0-r2
shadowsocks-rust	Chainguard	1.25.0-r2
apollo-router-2	Chainguard	2.18.0-r2

Risk scores

CVSS 3.1

5.300000190734863

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Vendor	Product	Versions
chainguard	sccache	0
wolfi	ntpd-rs	0
chainguard	vector	0
wolfi	shadowsocks-rust	0
chainguard	ntpd-rs	0
wolfi	linkerd2-proxy	0
wolfi	vector	0
crates.io	hickory-resolver	0.25.0
wolfi	sccache	0
chainguard	shadowsocks-rust	0
chainguard	apollo-router-2	0

Timeline

Oct 5, 2026 CVE Published
Oct 5, 2026 CVE Updated

Query this with the API

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vulnetix vdb vuln GHSA-6f2x-v7q7-m7m5
vulnetix vdb fixes GHSA-6f2x-v7q7-m7m5

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-6f2x-v7q7-m7m5/fixes/registry"

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