HIGH 7.5 Microsoft
CVE-2026-84304
gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation
Microsoft Security Update 2026-Sep: gRPC-Go: Heap Memory Exhaustion (OOM) via HTTP/2 DATA Frame Fragmentation
Affected Products
- azl3 docker-cli 25.0.7-4 on Azure Linux 3.0
- azl3 flannel 0.24.2-29 on Azure Linux 3.0
- azl3 kubevirt 1.7.1-8 on Azure Linux 3.0
- azl3 multus 4.0.2-10 on Azure Linux 3.0
- azl3 packer 1.9.5-18 on Azure Linux 3.0
- azl3 prometheus-adapter 0.12.0-7 on Azure Linux 3.0
- azl3 vitess 19.0.4-12 on Azure Linux 3.0
- azl3 containerd2 2.2.4-8 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-84304
- https://nvd.nist.gov/vuln/detail/CVE-2026-84304
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-09-08 via Microsoft. Affected: azl3 docker-cli 25.0.7-4 on Azure Linux 3.0, azl3 flannel 0.24.2-29 on Azure Linux 3.0, azl3 kubevirt 1.7.1-8 on Azure Linux 3.0 and 5 more.
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