CVE-2026-42154: Prometheus: remote read endpoint allows denial of service via crafted snappy payload

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-07

EPSS Score

0.02% (percentile: 5.8%)

Affected Products (1)

Other

• 21009-17086

Revision History

• 2026-05-07: Information published.