CVE-2026-47783

{"id": "CVE-2026-47783", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "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}]}, "published": "2026-05-20T07:16:15.533", "references": [{"url": "https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fed", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://github.com/memcached/memcached/compare/1.6.41...1.6.42", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://github.com/memcached/memcached/wiki/ReleaseNotes1642", "tags": ["Release Notes"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-208"}]}], "descriptions": [{"lang": "en", "value": "In memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because a loop exits as soon as a valid username is found by sasl_server_userdb_checkpass."}], "lastModified": "2026-05-21T17:06:40.670", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4EA02C48-8B8D-4F73-9DA2-33B1535B1AF2", "versionEndExcluding": "1.6.42"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}