{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59941", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-07T18:20:06.127Z", "datePublished": "2026-07-28T20:42:57.010Z", "dateUpdated": "2026-07-29T12:41:45.875Z"}, "containers": {"cna": {"title": "Dompdf: Uncontrolled resource consumption based on declared BMP dimensions", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "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:N/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/dompdf/dompdf/security/advisories/GHSA-8hg6-c449-896m", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/dompdf/dompdf/security/advisories/GHSA-8hg6-c449-896m"}, {"name": "https://github.com/dompdf/dompdf/commit/7c65e7bbeccf146b2409740405af73949ad129d0", "tags": ["x_refsource_MISC"], "url": "https://github.com/dompdf/dompdf/commit/7c65e7bbeccf146b2409740405af73949ad129d0"}, {"name": "https://github.com/dompdf/dompdf/releases/tag/v3.1.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/dompdf/dompdf/releases/tag/v3.1.6"}], "affected": [{"vendor": "dompdf", "product": "dompdf", "versions": [{"version": "< 3.1.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-28T20:42:57.010Z"}, "descriptions": [{"lang": "en", "value": "Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior accept a BMP image and generates a PDF-compatible PNG based only on its declared header dimensions and never bounds width \u00d7 height before the image is converted through GD. A 58-byte BMP whose header declares e.g. 6000\u00d76000 is accepted and later drives imagecreatetruecolor($width, $height) (and PHP's native BMP decoder) to allocate the full pixel canvas. A payload can fit in a single HTTP request: the BMP can be inlined as a data:image/bmp;base64,\u2026 URI inside attacker-controlled HTML, so no upload, no remote fetch, and no chroot-reachable file is required. I measured a 169-byte request driving a dompdf render to ~412 MB peak RSS and ~4.8 s of CPU/wall time, versus ~34 MB for an identically-sized benign request \u2014 roughly a 12\u00d7 memory amplification per request, repeatable and unauthenticated. This issue has been fixed in version 3.16."}], "source": {"advisory": "GHSA-8hg6-c449-896m", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/dompdf/dompdf/security/advisories/GHSA-8hg6-c449-896m", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-29T12:41:13.459265Z", "id": "CVE-2026-59941", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-29T12:41:45.875Z"}}]}}

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{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.1.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "dompdf", "source": "cna", "vendor": "dompdf"}, "product": "dompdf", "vendor": "dompdf"}], "created": "2026-07-28T22:30:16.507700+00:00", "updated": "2026-07-28T22:30:16.507720+00:00", "vendors": ["dompdf", "dompdf$PRODUCT$dompdf"]}