{"id":"UBUNTU-CVE-2026-6726","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.","modified":"2026-08-19T11:01:17Z","published":"2026-08-11T16:17:00Z","upstream":["CVE-2026-6726"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6726"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-6726"},{"type":"REPORT","url":"https://groups.google.com/g/libtpms-announce/c/xB2PqSQRA_8"},{"type":"REPORT","url":"https://trustedcomputinggroup.org/resource/errata-for-tpm-library-specification-2-0/"},{"type":"REPORT","url":"https://trustedcomputinggroup.org/wp-content/uploads/Extended-vrt0010-11-guidance_V1.pdf"},{"type":"REPORT","url":"https://trustedcomputinggroup.org/wp-content/uploads/VRT0010-Advisory_Final-1.pdf"}],"affected":[{"package":{"name":"libtpms","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libtpms?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["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"}},{"package":{"name":"libtpms","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libtpms?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["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"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}