CVE-2026-1709
Keylime: keylime: authentication bypass allows unauthorized administrative operations due to missing client-side tls authentication
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.
INFO
Published Date :
Feb. 6, 2026, 8:16 p.m.
Last Modified :
March 5, 2026, 8:58 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-1709
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update Keylime to a version that enforces client TLS authentication.
- Configure Keylime to require client certificates for all connections.
- Ensure all clients present valid certificates to the registrar.
- Restrict network access to the Keylime registrar.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-1709.
| URL | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:2224 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2026:2225 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2026:2298 | Third Party Advisory |
| https://access.redhat.com/security/cve/CVE-2026-1709 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2435514 | Issue TrackingThird Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-1709 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-1709
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-1709 vulnerability anywhere in the article.
-
Daily CyberSecurity
Trust Broken: Critical Keylime Flaw (CVSS 9.4) Disables mTLS Authentication
A critical-severity vulnerability has been discovered in Keylime, the open-source tool used by cloud tenants to verify the integrity of their remote systems. Tracked as CVE-2026-1709, the flaw carries ... Read more
The following table lists the changes that have been made to the
CVE-2026-1709 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 05, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:keylime:keylime:*:*:*:*:*:*:*:* versions up to (excluding) 7.12.0 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.0_aarch64:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.0_ppc64le:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:10.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_arm_64:10.0_aarch64:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:10.0_aarch64:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:10.0_s390x:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:10.0_s390x:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:10.0_ppc64le:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:10.0_ppc64le:*:*:*:*:*:*:* Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:2224 Types: Third Party Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:2225 Types: Third Party Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:2298 Types: Third Party Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-1709 Types: Third Party Advisory Added Reference Type Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2435514 Types: Issue Tracking, Third Party Advisory -
CVE Modified by [email protected]
Feb. 09, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:2298 -
CVE Modified by [email protected]
Feb. 09, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:2224 Added Reference https://access.redhat.com/errata/RHSA-2026:2225 -
New CVE Received by [email protected]
Feb. 06, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H Added CWE CWE-322 Added Reference https://access.redhat.com/security/cve/CVE-2026-1709 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2435514