{"id":"UBUNTU-CVE-2026-59943","details":"Dompdf is an HTML to PDF converter for PHP. In versions 3.15 and prior, if a malicious actor can supply unrestricted content for rendering by Dompdf they can utilize the SVG rendering functionality to leak filesystem information when rendering PDF files using image references within a data-URI encoded SVG document. Using an \u003cimage\u003e element inside a data-URI embedded SVG, an attacker can attempt to embed other files via the href or xlink:href attributes. When processing a file that does not exist (e.g. file:///DOESNOTEXIST), dompdf behaves differently than it does when accessing a file or directory that actually exists on the filesystem. This issue has been fixed in version 3.16.","modified":"2026-08-06T03:13:28.279838750Z","published":"2026-07-28T21:17:00Z","upstream":["CVE-2026-59943"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-59943"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-59943"},{"type":"REPORT","url":"https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297"},{"type":"REPORT","url":"https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0"},{"type":"REPORT","url":"https://github.com/dompdf/dompdf/releases/tag/v3.1.6"}],"affected":[{"package":{"name":"php-dompdf","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/php-dompdf?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.1+dfsg-2","0.6.1+dfsg-2build1","0.6.1+dfsg-2ubuntu1","0.6.1+dfsg-2ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"php-dompdf","binary_version":"0.6.1+dfsg-2ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59943.json"}},{"package":{"name":"php-dompdf","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/php-dompdf?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-3","0.6.2+dfsg-3ubuntu0.18.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"php-dompdf","binary_version":"0.6.2+dfsg-3ubuntu0.18.04.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59943.json"}},{"package":{"name":"php-dompdf","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/php-dompdf?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-3","0.6.2+dfsg-3ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"php-dompdf","binary_version":"0.6.2+dfsg-3ubuntu0.20.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59943.json"}},{"package":{"name":"php-dompdf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/php-dompdf?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-3.1","0.6.2+dfsg-3.1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.6.2+dfsg-3.1ubuntu0.1","binary_name":"php-dompdf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59943.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}