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CVE-2026-1709

Keylime authentication bypass

9.4 CRITICALEPSS 5.79%
  1. Published6 Feb 2026

Description

A flaw was found in Keylime. The Keylime registrar, since version 7.12.0, does not enforce client-side Transport Layer Security (TLS) authentication. This authentication bypass vulnerability allows unauthenticated clients with network access to perform administrative operations, including listing agents, retrieving public Trusted Platform Module (TPM) data, and deleting agents, by connecting without presenting a client certificate.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Affected products

Keylime< 7.12.0
Redhat Enterprise Linux10.0 · 9.0
Redhat Enterprise Linux Eus10.0
Redhat Enterprise Linux For Arm 6410.0_aarch64 · 9.0_aarch64
Redhat Enterprise Linux For Arm 64 Eus10.0_aarch64
Redhat Enterprise Linux For Ibm Z Systems10.0_s390x · 9.0_s390x
Redhat Enterprise Linux For Ibm Z Systems Eus10.0_s390x
Redhat Enterprise Linux For Power Little Endian10.0_ppc64le · 9.0_ppc64le
Redhat Enterprise Linux For Power Little Endian Eus10.0_ppc64le

Remediation

Fixed in
Keylime≥ 7.12.0

References

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Frequently asked

Is CVE-2026-1709 being actively exploited?

CVE-2026-1709 is not in the CISA KEV catalog. Its EPSS exploit probability is 5.79%.

How severe is CVE-2026-1709?

CVE-2026-1709 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 5.79% probability of exploitation.

Which products are affected by CVE-2026-1709?

Affected products include Keylime, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux For Arm 64, Redhat Enterprise Linux For Arm 64 Eus, and 4 more.

How do I fix CVE-2026-1709?

Upgrade affected software to a fixed version, for example Keylime 7.12.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-1709 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.