UBUNTU-CVE-2026-6726

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Source
https://ubuntu.com/security/CVE-2026-6726
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6726.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-6726
Upstream
  • CVE-2026-6726
Published
2026-08-13T00:00:00Z
Modified
2026-08-13T19:30:05.413753590Z
Severity
  • 7.9 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An information leakage vulnerability was reported in the TCG TPM 2.0 reference code that could allow a local attacker with elevated privileges to obtain a credential from a TPM-aware CA for a falsified TPM key (such as an Attestation Key, DevID Key or TLS authentication key) and falsify other TPM 2.0 attestations with this key. See also TCG VRT0010.

References

Affected packages

Ubuntu:22.04:LTS / libtpms

Package

Name
libtpms
Purl
pkg:deb/ubuntu/libtpms?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.8.2-1ubuntu1
0.9.0-0ubuntu1
0.9.0-0ubuntu2
0.9.0-0ubuntu3
0.9.0-0ubuntu4
0.9.3-0ubuntu1
0.9.3-0ubuntu1.22.04.1
0.9.3-0ubuntu1.22.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.9.3-0ubuntu1.22.04.2",
            "binary_name": "libtpms0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6726.json"

Ubuntu:24.04:LTS / libtpms

Package

Name
libtpms
Purl
pkg:deb/ubuntu/libtpms?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.3-0ubuntu2
0.9.3-0ubuntu3
0.9.3-0ubuntu4
0.9.3-0ubuntu4.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.9.3-0ubuntu4.24.04.1",
            "binary_name": "libtpms0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6726.json"