Disclosure summary
CoreDNS gRPC/HTTPS/HTTP3 servers lack resource limits, enabling DoS via unbounded connections and oversized messages
Source-reported weakness categories
CWE-770
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Jan
Open original source · Updated Feb 18, 2026
CoreDNS gRPC/HTTPS/HTTP3 servers lack resource limits, enabling DoS via unbounded connections and oversized messages
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.5
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | azl3 coredns 1.11.4-12 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | azl3 coredns 1.11.4-13 on Azure Linux 3.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 coredns 1.11.1-25 on CBL Mariner 2.0 | (MSRC status code 3) |
| Microsoft update guide | cbl2 coredns 1.11.1-24 on CBL Mariner 2.0 | (MSRC status code 3) |
Vendor remediation references
- CBL-Mariner Releases · build 1.11.4-13 · product IDs 20914-17084
- Vendor guidance · product IDs 20914-17084
- CBL-Mariner Releases · build 1.11.1-25 · product IDs 20915-17086
- Vendor guidance · product IDs 20915-17086
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-01-09T20:03:14-05:00
MODIFIED 2026-02-18T20:14:17-05:00
INGESTED 2026-10-08T12:45:20-04:00