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{}

{"cveTags": [], "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."}], "id": "CVE-2026-47783", "lastModified": "2026-05-20T07:16:15.533", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-05-20T07:16:15.533", "references": [{"source": "cve@mitre.org", "url": "https://github.com/memcached/memcached/commit/d13f282b4bce33a9c33b8a1bbf07f12114160fed"}, {"source": "cve@mitre.org", "url": "https://github.com/memcached/memcached/compare/1.6.41...1.6.42"}, {"source": "cve@mitre.org", "url": "https://github.com/memcached/memcached/wiki/ReleaseNotes1642"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-208"}], "source": "cve@mitre.org", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.6.42)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "memcached", "source": "cna", "vendor": "memcached"}, "product": "memcached", "vendor": "memcached"}], "created": "2026-05-20T07:30:25.075925+00:00", "title": "Timing Side\u2011Channel in SASL Username Lookup Causes Username Enumeration in Memcached", "updated": "2026-05-20T08:00:11.684180+00:00", "vendors": ["memcached", "memcached$PRODUCT$memcached"]}