Critical severity · published Feb 6, 2026
CVE-2026-1709
Keylime: keylime: authentication bypass allows unauthorized administrative operations due to missing client-side tls authentication
9.8
CVSS
5.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.8% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor, CISA
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor, CISA
EL
Enterprise Linux · Redhat
9.0; 10.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
10.0 · source: NVD
EL
Enterprise Linux For Arm 64 · Redhat
9.0_aarch64; 10.0_aarch64 · source: NVD
EL
Enterprise Linux For Arm 64 Eus · Redhat
10.0_aarch64 · source: NVD
EL
Enterprise Linux For Ibm Z Systems · Redhat
9.0_s390x; 10.0_s390x · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus · Redhat
10.0_s390x · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
9.0_ppc64le; 10.0_ppc64le · source: NVD
EL
Enterprise Linux For Power Little Endian Eus · Redhat
10.0_ppc64le · source: NVD
KE
Keylime · Keylime
before 7.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1709
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1709
Third Party Advisory
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
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2435514
security.access.redhat.com
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1709.json
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