Keylime: keylime: authentication bypass allows unauthorized administrative operations due to missing client-side tls authentication
Summary
| CVE | CVE-2026-1709 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-02-06 20:16:09 UTC |
| Updated | 2026-06-27 05:16:42 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-322 | NVD-CWE-noinfo | CWE-322 Key Exchange without Entity Authentication
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | ADP | CVSS | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H |
| 3.1 | [email protected] | Secondary | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H |
| 3.1 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | Secondary | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H |
| 3.1 | CNA | CVSS | 9.4 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Keylime | Keylime | All | All | All | All |
| Operating System | Redhat | Enterprise Linux | 10.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 9.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Eus | 10.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux For Arm 64 | 10.0_aarch64 | All | All | All |
| Operating System | Redhat | Enterprise Linux For Arm 64 | 9.0_aarch64 | All | All | All |
| Operating System | Redhat | Enterprise Linux For Arm 64 Eus | 10.0_aarch64 | All | All | All |
| Operating System | Redhat | Enterprise Linux For Ibm Z Systems | 10.0_s390x | All | All | All |
| Operating System | Redhat | Enterprise Linux For Ibm Z Systems | 9.0_s390x | All | All | All |
| Operating System | Redhat | Enterprise Linux For Ibm Z Systems Eus | 10.0_s390x | All | All | All |
| Operating System | Redhat | Enterprise Linux For Power Little Endian | 10.0_ppc64le | All | All | All |
| Operating System | Redhat | Enterprise Linux For Power Little Endian | 9.0_ppc64le | All | All | All |
| Operating System | Redhat | Enterprise Linux For Power Little Endian Eus | 10.0_ppc64le | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:7.12.1-11.el10_1.4 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:7.12.1-2.el10_0.5 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:7.12.1-11.el9_7.4 * rpm | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux AppStream EUS V. 10.0 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux AppStream V. 10 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux AppStream V. 9 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1709.json | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | security.access.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-1709 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | Third Party Advisory |
| access.redhat.com/errata/RHSA-2026:2224 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | Third Party Advisory |
| access.redhat.com/errata/RHSA-2026:2225 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | Third Party Advisory |
| bugzilla.redhat.com/show_bug.cgi | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | bugzilla.redhat.com | Issue Tracking, Third Party Advisory |
| access.redhat.com/errata/RHSA-2026:2298 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-01-30T00:00:00.000Z | Reported to Red Hat. |
| CNA | 2026-02-06T17:45:00.000Z | Made public. |
| ADP | 2026-01-30T00:00:00.000Z | Reported to Red Hat. |
| ADP | 2026-02-06T17:45:00.000Z | Made public. |
Solutions
ADP: RHSA-2026:2298: Red Hat Enterprise Linux AppStream EUS (v. 10.0)
ADP: RHSA-2026:2225: Red Hat Enterprise Linux AppStream (v. 10)
ADP: RHSA-2026:2224: Red Hat Enterprise Linux AppStream (v. 9)
Workarounds
CNA: Restrict network access to the Keylime registrar's HTTPS port (default 8891) to only trusted verifier and tenant hosts using firewall rules. Alternatively, deploy a reverse proxy (e.g., Nginx, HAProxy) in front of the registrar to enforce client certificate authentication. Ensure any changes to firewall rules or proxy configurations are reloaded or services are restarted for the mitigation to take effect.
ADP: Restrict network access to the Keylime registrar's HTTPS port (default 8891) to only trusted verifier and tenant hosts using firewall rules. Alternatively, deploy a reverse proxy (e.g., Nginx, HAProxy) in front of the registrar to enforce client certificate authentication. Ensure any changes to firewall rules or proxy configurations are reloaded or services are restarted for the mitigation to take effect.