Threats Tagged 'cve-2026-15576'
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Threats Tagged 'cve-2026-15576'
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Checkmk versions prior to 2.5.0p10 contain an improper authentication vulnerability in the agent receiver component. This flaw allows an unauthenticated remote attacker to bypass mutual TLS client certificate verification for relay endpoints by using a fixed placeholder identity in the request URL. The vulnerability affects only the Cloud, Ultimate, and Ultimate MT editions, as other editions do not expose relay endpoints. The impact is limited to integrity and availability. No known exploits are reported in the wild, and no official patch information is provided. Join the discussion | GCVE Database | 08/21/2026, 12:30:32 UTC Added: 08/21/2026, 14:22:15 UTC |
0 CVE-2026-15576 is a medium severity vulnerability in Checkmk versions 2.5.0 through 2.5.0p9. It involves improper authentication in the agent receiver component, allowing an unauthenticated remote attacker to bypass mutual TLS client certificate verification on relay endpoints by using a fixed placeholder identity in the request URL. This issue affects only the Cloud, Ultimate, and Ultimate MT editions of Checkmk, as other editions do not expose relay endpoints. The impact is limited to integrity and availability. Join the discussion | CVE Database V5 | 08/21/2026, 11:10:00 UTC Added: 08/21/2026, 11:23:00 UTC |
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