{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54736", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T23:07:33.233Z", "datePublished": "2026-07-10T21:02:53.873Z", "dateUpdated": "2026-07-10T21:02:53.873Z"}, "containers": {"cna": {"title": "Phalcon: Non-constant-time HMAC verification in `Encryption\\Crypt::decrypt` (timing side-channel)", "problemTypes": [{"descriptions": [{"cweId": "CWE-208", "lang": "en", "description": "CWE-208: Observable Timing Discrepancy", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-347", "lang": "en", "description": "CWE-347: Improper Verification of Cryptographic Signature", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/phalcon/cphalcon/security/advisories/GHSA-8jqh-95g6-7jpj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/phalcon/cphalcon/security/advisories/GHSA-8jqh-95g6-7jpj"}, {"name": "https://github.com/phalcon/cphalcon/issues/17090", "tags": ["x_refsource_MISC"], "url": "https://github.com/phalcon/cphalcon/issues/17090"}, {"name": "https://github.com/phalcon/cphalcon/pull/17091", "tags": ["x_refsource_MISC"], "url": "https://github.com/phalcon/cphalcon/pull/17091"}, {"name": "https://github.com/phalcon/cphalcon/commit/ad53ab1b2e7ec59b3af92b0b37b8aaa099011137", "tags": ["x_refsource_MISC"], "url": "https://github.com/phalcon/cphalcon/commit/ad53ab1b2e7ec59b3af92b0b37b8aaa099011137"}, {"name": "https://github.com/phalcon/cphalcon/releases/tag/v5.14.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/phalcon/cphalcon/releases/tag/v5.14.1"}], "affected": [{"vendor": "phalcon", "product": "cphalcon", "versions": [{"version": "< 5.14.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-10T21:02:53.873Z"}, "descriptions": [{"lang": "en", "value": "Phalcon is a high-performance, full-stack PHP framework. Prior to 5.14.1, Phalcon\\Encryption\\Crypt::decrypt compares the attacker-supplied HMAC tag against the freshly computed HMAC using PHP/Zephir identity comparison, which lowers to a byte-wise comparison that returns early on the first differing byte. This observable timing discrepancy can allow an attacker to recover a valid tag byte-by-byte and attach it to a chosen IV and ciphertext so that decrypt() accepts tampered encrypted content as authentic. This issue is fixed in version 5.14.1."}], "source": {"advisory": "GHSA-8jqh-95g6-7jpj", "discovery": "UNKNOWN"}}}}

{}

{}

{}