A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.
高危 CVSS 7.5
摘要
A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.
中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。
深度研判 · 自动通道
该漏洞尚未生成深度研判报告（DR-003 v2 AI pipeline 建设中）。
Lint 边界警告 (2)
以下是本次研判 lint 阶段发现的非阻塞性警告（如引用 URL 未在白名单内）。这些不影响漏洞条目可用性，仅为透明度披露（参 DR-002）。
-
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html -
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://thekelleys.org.uk/dnsmasq/CVE/
数据来源
- NVD DATABASE
原始链接
- https://github.com/NixOS/nixpkgs/pull/519082
- https://github.com/NixOS/nixpkgs/pull/519093
- https://github.com/pi-hole/FTL/releases/tag/v6.6.2
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html
- https://thekelleys.org.uk/dnsmasq/CVE/
- https://www.kb.cert.org/vuls/id/471747
- https://access.redhat.com/errata/RHSA-2026:19158
- https://access.redhat.com/errata/RHSA-2026:19373
- https://access.redhat.com/errata/RHSA-2026:20589
- https://access.redhat.com/errata/RHSA-2026:34508
- https://access.redhat.com/security/cve/CVE-2026-4890
- https://bugzilla.redhat.com/show_bug.cgi?id=2458516
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4890.json
时间线
- nvd_ingest NVD