HIGH 7.5 Microsoft
CVE-2026-42154
Prometheus: remote read endpoint allows denial of service via crafted snappy payload
Microsoft Security Update 2026-May: Prometheus: remote read endpoint allows denial of service via crafted snappy payload
Affected Products
- cbl2 prometheus 2.37.9-7 on CBL Mariner 2.0
- azl3 telegraf 1.31.0-19 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42154
- https://nvd.nist.gov/vuln/detail/CVE-2026-42154
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-05-12 via Microsoft. Affected: cbl2 prometheus 2.37.9-7 on CBL Mariner 2.0, azl3 telegraf 1.31.0-19 on Azure Linux 3.0.
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