{"id":"UBUNTU-CVE-2026-85498","details":"[Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow]","modified":"2026-09-15T20:16:42.536808457Z","published":"2026-09-07T00:00:00Z","related":["USN-8762-1"],"upstream":["CVE-2026-85498"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-85498"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-85498"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8762-1"}],"affected":[{"package":{"name":"policykit-1","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/policykit-1?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.105-3ubuntu3","0.105-4ubuntu1","0.105-4ubuntu2","0.105-4ubuntu2.14.04.1","0.105-4ubuntu3.14.04.1","0.105-4ubuntu3.14.04.2","0.105-4ubuntu3.14.04.5","0.105-4ubuntu3.14.04.6","0.105-4ubuntu3.14.04.6+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-4ubuntu3.14.04.6+esm1"},{"binary_name":"libpolkit-agent-1-0","binary_version":"0.105-4ubuntu3.14.04.6+esm1"},{"binary_version":"0.105-4ubuntu3.14.04.6+esm1","binary_name":"libpolkit-backend-1-0"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-4ubuntu3.14.04.6+esm1"},{"binary_version":"0.105-4ubuntu3.14.04.6+esm1","binary_name":"policykit-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"}},{"package":{"name":"policykit-1","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/policykit-1?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.105-11ubuntu2","0.105-13","0.105-13ubuntu1","0.105-14","0.105-14.1","0.105-14.1ubuntu0.1","0.105-14.1ubuntu0.4","0.105-14.1ubuntu0.5","0.105-14.1ubuntu0.5+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-14.1ubuntu0.5+esm1"},{"binary_version":"0.105-14.1ubuntu0.5+esm1","binary_name":"libpolkit-agent-1-0"},{"binary_name":"libpolkit-backend-1-0","binary_version":"0.105-14.1ubuntu0.5+esm1"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-14.1ubuntu0.5+esm1"},{"binary_version":"0.105-14.1ubuntu0.5+esm1","binary_name":"policykit-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"}},{"package":{"name":"policykit-1","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/policykit-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.105-18","0.105-20","0.105-20ubuntu0.18.04.1","0.105-20ubuntu0.18.04.4","0.105-20ubuntu0.18.04.5","0.105-20ubuntu0.18.04.6"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_version":"0.105-20ubuntu0.18.04.6","binary_name":"libpolkit-agent-1-0"},{"binary_name":"libpolkit-backend-1-0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_name":"libpolkit-gobject-1-0","binary_version":"0.105-20ubuntu0.18.04.6"},{"binary_name":"policykit-1","binary_version":"0.105-20ubuntu0.18.04.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"}},{"package":{"name":"policykit-1","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/policykit-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.105-26ubuntu1","0.105-26ubuntu1.1","0.105-26ubuntu1.2","0.105-26ubuntu1.3"],"ecosystem_specific":{"binaries":[{"binary_name":"gir1.2-polkit-1.0","binary_version":"0.105-26ubuntu1.3"},{"binary_version":"0.105-26ubuntu1.3","binary_name":"libpolkit-agent-1-0"},{"binary_version":"0.105-26ubuntu1.3","binary_name":"libpolkit-gobject-1-0"},{"binary_name":"policykit-1","binary_version":"0.105-26ubuntu1.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"}},{"package":{"name":"policykit-1","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/policykit-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.105-33ubuntu0.2"}]}],"versions":["0.105-31","0.105-31ubuntu1","0.105-31.1","0.105-32","0.105-33","0.105-33ubuntu0.1"],"ecosystem_specific":{"availability":"No 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