Missing Authentication for Critical Function Affecting keylime package, versions [7.12.0, 7.12.2)[7.13.0, 7.13.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Feb 2026
- disclosed6 Feb 2026
- creditUnknown
Introduced: 6 Feb 2026
CVE-2026-1709 (opens in a new tab)How to fix?
Upgrade keylime to version 7.12.2, 7.13.1 or higher.
Overview
keylime is a TPM-based key bootstrapping and system integrity measurement system for cloud
Affected versions of this package are vulnerable to Missing Authentication for Critical Function due to the registrar's TLS context being configured with ssl.CERT_OPTIONAL instead of requiring client certificates. An attacker can gain unauthorized access to protected API endpoints, enumerate registered agents, retrieve sensitive agent details, and delete agents by connecting without presenting a valid client certificate.
Workaround
This vulnerability can be mitigated by one of the following:
Restricting network access to the registrar HTTPS port using firewall rules to allow only trusted hosts
Deploying a reverse proxy that enforces client certificate authentication.