What’s Vulnerable › Vulnerabilities

CVE-2023-31211: Disabled automation users could still authenticate

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-12 · updated 2026-06-17
• Weakness: CWE-303

Description

Insufficient authentication flow in Checkmk before 2.2.0p18, 2.1.0p38 and 2.0.0p39 allows attacker to use locked credentials

Affected products

• Checkmk GmbH Checkmk: 2.0.0-b1, 2.0.0-b2, 2.0.0-b3, 2.0.0-b4, 2.0.0-b5, 2.0.0-b6 (+111)
• Tribe29 Checkmk: through 2.0.0

References

• https://checkmk.com/werk/16227
• https://checkmk.com/werk/16227

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