CVE-2026-49286

{"id": "CVE-2026-49286", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-49286", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-22T14:22:36.863995Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "pontedilana", "product": "php-weasyprint", "versions": [{"status": "affected", "version": "< 2.6.0"}]}]}], "published": "2026-06-19T18:16:19.487", "references": [{"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj", "source": "security-advisories@github.com"}, {"url": "https://github.com/pontedilana/php-weasyprint/commit/d1aa487722b5a3cab9b222b85fdb5608a5a550c3", "source": "security-advisories@github.com"}, {"url": "https://github.com/pontedilana/php-weasyprint/releases/tag/2.6.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-2fmj-p74r-3wjm", "source": "security-advisories@github.com"}, {"url": "https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-2fmj-p74r-3wjm", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, `pontedilana/php-weasyprint` guarded the output filename against the `phar://` stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so `PHAR://`, `Phar://`, etc. bypass the check and reach `fileExists()` (`file_exists()`) in `prepareOutput()`. On PHP 7 (which the library still supports \u2014 PHP 7.4+), this triggers deserialization of a crafted PHAR archive's metadata, leading to remote code execution. This is the patch-bypass of CVE-2023-28115. The same issue and fix were handled upstream in KnpLabs/snappy (GHSA-92rv-4j2h-8mjj). PhpWeasyPrint version 2.6.0 contains a patch for the issue."}], "lastModified": "2026-06-22T18:20:40.350", "sourceIdentifier": "security-advisories@github.com"}