{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45133", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-08T20:08:17.209Z", "datePublished": "2026-07-14T18:45:03.458Z", "dateUpdated": "2026-07-14T18:45:03.458Z"}, "containers": {"cna": {"title": "Symfony: [Yaml] Harden the parser when handling untrusted input", "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-776", "lang": "en", "description": "CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1333", "lang": "en", "description": "CWE-1333: Inefficient Regular Expression Complexity", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/symfony/symfony/security/advisories/GHSA-c2p3-7m5p-cv8x", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/symfony/symfony/security/advisories/GHSA-c2p3-7m5p-cv8x"}, {"name": "https://github.com/symfony/symfony/releases/tag/v5.4.52", "tags": ["x_refsource_MISC"], "url": "https://github.com/symfony/symfony/releases/tag/v5.4.52"}, {"name": "https://github.com/symfony/symfony/releases/tag/v6.4.40", "tags": ["x_refsource_MISC"], "url": "https://github.com/symfony/symfony/releases/tag/v6.4.40"}, {"name": "https://github.com/symfony/symfony/releases/tag/v7.4.12", "tags": ["x_refsource_MISC"], "url": "https://github.com/symfony/symfony/releases/tag/v7.4.12"}, {"name": "https://github.com/symfony/symfony/releases/tag/v8.0.12", "tags": ["x_refsource_MISC"], "url": "https://github.com/symfony/symfony/releases/tag/v8.0.12"}], "affected": [{"vendor": "symfony", "product": "symfony", "versions": [{"version": "< 5.4.52", "status": "affected"}, {"version": ">= 6.0.0-BETA1, < 6.4.40", "status": "affected"}, {"version": ">= 7.0.0-BETA1, < 7.4.12", "status": "affected"}, {"version": ">= 8.0.0-BETA1, < 8.0.12", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-14T18:45:03.458Z"}, "descriptions": [{"lang": "en", "value": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, when the parser is exposed to attacker-controlled input, deeply nested mappings or sequences cause both the block-level (Parser::parseBlock()) and inline (Inline::parseSequence() / Inline::parseMapping()) parsers to recurse without a depth limit. A crafted document exhausts the PHP stack and crashes the worker. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12."}], "source": {"advisory": "GHSA-c2p3-7m5p-cv8x", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{}