Keylime: keylime: authentication bypass allows unauthorized administrative operations due to missing client-side tls authentication

published 2026-02-06 9 mo ago modified 2026-07-15 3 mo ago also GHSA-4jqp-9qjv-57m2 , PYSEC-2026-74 , EUVD-2026-5599

cvss: 9.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 5.7%; EPSS 5.7% chance of exploitation in 30 days, percentile 93%
public exploits: 0; none known

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.

Patch / fix

fixed in 4 distros 5

pypi keylime 7.12.0, 7.12.2, 7.13.1
Red Hat Red Hat Enterprise Linux 10 0:7.12.1-11.el10_1.4
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:7.12.1-2.el10_0.5
Red Hat Red Hat Enterprise Linux 9 0:7.12.1-11.el9_7.4

red hat suse opensuse almalinux rocky linux

keylime RHEL 9 7.12.1-11.el9_7.4
keylime-base RHEL 9 7.12.1-11.el9_7.4
keylime-tenant RHEL 9 7.12.1-11.el9_7.4
keylime-selinux RHEL 9 7.12.1-11.el9_7.4
python3-keylime RHEL 9 7.12.1-11.el9_7.4
keylime-verifier RHEL 9 7.12.1-11.el9_7.4
keylime-registrar RHEL 9 7.12.1-11.el9_7.4
keylime RHEL 10.1 7.12.1-11.el10_1.4

red hat advisories RHSA-2026:2298 RHSA-2026:2224 RHSA-2026:2225

keylime SLES for SAP applications 16.0, SLES 16.0 7.14.0+0-160000.1.1

suse advisories SUSE-SU-2026:20912-1

keylime openSUSE Leap 16.0 7.14.0+0-160000.1.1
keylime openSUSE Tumbleweed 7.14.0+0-1.1

opensuse advisories openSUSE-SU-2026:20398-1 openSUSE-SU-2026:10165-1

keylime AlmaLinux 9 7.12.1-11.el9_7.4
keylime-base AlmaLinux 9 7.12.1-11.el9_7.4
keylime-tenant AlmaLinux 9 7.12.1-11.el9_7.4
keylime-selinux AlmaLinux 9 7.12.1-11.el9_7.4
python3-keylime AlmaLinux 9 7.12.1-11.el9_7.4
keylime-verifier AlmaLinux 9 7.12.1-11.el9_7.4
keylime-registrar AlmaLinux 9 7.12.1-11.el9_7.4
keylime-selinux AlmaLinux 10 7.12.1-11.el10_1.4

almalinux advisories ALSA-2026:2224 ALSA-2026:2225

keylime Rocky Linux 9 7.12.1-11.el9_7.4
keylime Rocky Linux 10 7.12.1-11.el10_1.4

rocky linux advisories RLSA-2026:2224 RLSA-2026:2225

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-1709 updated 2026-07-11 cvss 9.4

keylime: Keylime: Authentication bypass allows unauthorized administrative operations due to missing client-side TLS authentication

Red Hat Enterprise Linux AppStream (v. 9) keylime 7.12.1-11.el9_7.4, keylime-base 7.12.1-11.el9_7.4, keylime-tenant 7.12.1-11.el9_7.4, keylime-selinux 7.12.1-11.el9_7.4, python3-keylime 7.12.1-11.el9_7.4, keylime-verifier 7.12.1-11.el9_7.4, +1 more
fixed: vendor fix RHSA-2026:2224
Red Hat Enterprise Linux AppStream (v. 10) keylime 7.12.1-11.el10_1.4, keylime-base 7.12.1-11.el10_1.4, keylime-tools 7.12.1-11.el10_1.4, keylime-tenant 7.12.1-11.el10_1.4, keylime-selinux 7.12.1-11.el10_1.4, python3-keylime 7.12.1-11.el10_1.4, +2 more
fixed: vendor fix RHSA-2026:2225
Red Hat Enterprise Linux AppStream EUS (v. 10.0) keylime 7.12.1-2.el10_0.5, keylime-base 7.12.1-2.el10_0.5, keylime-tools 7.12.1-2.el10_0.5, keylime-tenant 7.12.1-2.el10_0.5, keylime-selinux 7.12.1-2.el10_0.5, python3-keylime 7.12.1-2.el10_0.5, +2 more
fixed: vendor fix RHSA-2026:2298

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 9 mo ago (2026-02-06)

Exploit prediction

5.71% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
CISA ADP	3.1	9.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub	3.1	9.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
OSV	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	keylime	>=7.12.0, <7.12.2 >=7.13.0, <7.13.1 <7.12.0	7.12.2 7.13.1 7.12.0

Affected products

Red Hat Red Hat Enterprise Linux 10
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

CWE-322 Key Exchange without Entity Authentication
CWE-295 Improper Certificate Validation
CWE-306 Missing Authentication for Critical Functionality

References

access.redhat.com /errata/RHSA-2026:2224
vendor-advisory, web, third-party-advisory, advisory
access.redhat.com /errata/RHSA-2026:2225
vendor-advisory, web, third-party-advisory, advisory
access.redhat.com /errata/RHSA-2026:2298
vendor-advisory, web, third-party-advisory, advisory
access.redhat.com /security/cve/CVE-2026-1709
vdb-entry, web, third-party-advisory, advisory
bugzilla.redhat.com /show_bug.cgi?id=2435514
issue-tracking, web, third-party-advisory, report
security.access.redhat.com /data/csaf/v2/vex/2026/cve-2026-1709.json
github.com /keylime/keylime/security/advisories/GHSA-4jqp-9qjv-57m2
web
nvd.nist.gov /vuln/detail/CVE-2026-1709
advisory
github.com /keylime/keylime
package
github.com /pypa/advisory-database/tree/main/vulns/keylime/PYSEC-2026-74.yaml
web
github.com /advisories/GHSA-4jqp-9qjv-57m2
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary