{"id":"CVE-2026-59943","state":"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 <image> 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.","publishedAt":"2026-07-28T20:19:22.746Z","updatedAt":"2026-07-29T12:37:56.940Z","severity":{"score":6.3,"label":"Medium","version":"4.0","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","source":"GitHub_M"},"assigner":"GitHub_M","products":["dompdf dompdf"],"affected":[{"vendor":"dompdf","product":"dompdf","versions":[{"version":"< 3.1.6","status":"affected"}]}],"references":["https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297","https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0","https://github.com/dompdf/dompdf/releases/tag/v3.1.6"],"weaknesses":["CWE-209"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59943.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59943","state":"PUBLISHED","datePublished":"2026-07-28T20:19:22.746Z","dateUpdated":"2026-07-29T12:37:56.940Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-07T18:20:06.128Z"},"containers":{"cna":{"title":"Dompdf: Embedded SVG images can leak existence of files and directories within the filesystem","descriptions":[{"lang":"en","value":"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 <image> 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."}],"affected":[{"vendor":"dompdf","product":"dompdf","versions":[{"version":"< 3.1.6","status":"affected"}]}],"references":[{"url":"https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297","name":"https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0","name":"https://github.com/dompdf/dompdf/commit/6a58996865db05d8fede748507e50ac4b8c5bfd0","tags":["x_refsource_MISC"]},{"url":"https://github.com/dompdf/dompdf/releases/tag/v3.1.6","name":"https://github.com/dompdf/dompdf/releases/tag/v3.1.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-209","lang":"en","description":"CWE-209: Generation of Error Message Containing Sensitive Information","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-28T20:19:22.746Z"},"source":{"advisory":"GHSA-j8qw-6jw8-r297","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/dompdf/dompdf/security/advisories/GHSA-j8qw-6jw8-r297","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T12:37:52.477633Z","id":"CVE-2026-59943","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T12:37:56.940Z"}}]}}}