[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fGftfnNSnyWG5qFg-CFCcP8kuZvbKQJ3pj2PAb3IM9MY":3,"g5a-risk:CVE-2021-20327":110},{"success":4,"data":5,"meta":108},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":46,"epssPercentile":26,"epssTimeSeries":47,"severity":48,"affectedProducts":49,"affectedProductsCount":55,"references":56,"referencesCount":55,"weaknesses":62,"weaknessesCount":55,"isActivelyExploited":71,"cisaInfo":26,"otxData":26,"relatedBlogPosts":72,"seoMetadata":73,"configurations":98,"relatedVendorCves":106,"notableEvents":107},"CVE-2021-20327","What is CVE-2021-20327?","A specific version of the Node.js mongodb-client-encryption module does not perform correct validation of the KMS server’s certificate. This vulnerability in combination with a privileged network position active MITM attack could result in interception of traffic between the Node.js driver and the KMS service rendering client-side field level encryption (CSFLE) ineffective. This issue was discovered during internal testing and affects mongodb-client-encryption module version 1.2.0, which was available from 2021-Jan-29 and deprecated in the NPM Registry on 2021-Feb-04. This vulnerability does not impact driver traffic payloads with CSFLE-supported key services from applications residing inside the AWS, GCP, and Azure nework fabrics due to compensating controls in these environments. This issue does not impact driver workloads that don’t use Field Level Encryption. This issue affect MongoDB Node.js Driver mongodb-client-encryption module version 1.2.0","A specific version of the Node.js mongodb-client-encryption module does not perform correct validation of the KMS server’s certificate. This vulnerability in...","2021-02-25T17:15:28.16","2024-09-16T20:15:36.973",6.8,"CVSS:3.1\u002FAV:A\u002FAC:H\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":26,"CVSSMetricV2":37,"CVSSMetricV40":26},[16,29],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":23,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","ADJACENT_NETWORK","HIGH","NONE","UNCHANGED","MEDIUM",null,1.6,5.2,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":36,"ImpactScore":28},"cna@mongodb.com","Secondary",{"Version":20,"VectorString":33,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":34,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":23,"BaseScore":35,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":23,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"CVSS:3.1\u002FAV:A\u002FAC:H\u002FPR:N\u002FUI:R\u002FS:U\u002FC:H\u002FI:H\u002FA:N","REQUIRED",6.4,1.2,[38],{"Source":17,"Type":18,"CVSSData":39,"BaseSeverity":25,"ExploitabilityScore":44,"ImpactScore":45,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":26},{"Version":40,"VectorString":41,"AccessVector":21,"AccessComplexity":25,"Authentication":23,"ConfidentialityImpact":42,"IntegrityImpact":42,"AvailabilityImpact":23,"BaseScore":43,"BaseSeverity":26,"Exploitability":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"CollateralDamagePotential":26,"TargetDistribution":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"EnvironmentalScore":26},"2.0","AV:A\u002FAC:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:N","PARTIAL",4.3,5.5,4.9,0.00202,[46,46,46,46,46,46,46],"Medium",[50],{"vendor":51,"product":52,"version":53,"criteria":54,"vulnerable":4},"mongodb","libmongocrypt","1.2.0","cpe:2.3:a:mongodb:libmongocrypt:1.2.0:*:*:*:*:node.js:*:*",1,[57],{"url":58,"source":59,"tags":60},"https:\u002F\u002Fjira.mongodb.org\u002Fbrowse\u002FNODE-3125","Mongodb",[61],"Vendor Advisory",[63],{"id":64,"name":65,"description":66,"extendedDescription":67,"status":68,"abstraction":69,"structure":70},"CWE-295","Improper Certificate Validation","The product does not validate, or incorrectly validates, a certificate.","When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by interfering in the communication path between the host and client. The product might connect to a malicious host while believing it is a trusted host, or the product might be deceived into accepting spoofed data that appears to originate from a trusted host.","Draft","Base","Simple",false,[],{"title":74,"metaDescription":75,"keywords":76,"canonicalUrl":77,"structuredData":78},"What is CVE-2021-20327? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-20327, a medium severity cyber security vulnerability from 2021. A specific version of the Node.js mongodb-client-encrypti...","CVE-2021-20327, CVE-2021-20327 vulnerability, CVE-2021-20327 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, mongodb security, libmongocrypt vulnerability","\u002Fwhat-is\u002Fcve-2021-20327",{"@context":79,"@type":80,"headline":74,"description":75,"datePublished":10,"dateModified":11,"author":81,"publisher":85,"about":89,"mainEntityOfPage":93,"articleSection":96,"keywords":97},"https:\u002F\u002Fschema.org","TechArticle",{"@type":82,"name":83,"url":84},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":82,"name":83,"url":84,"logo":86},{"@type":87,"url":88},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":90,"name":6,"description":91,"additionalType":92},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":94,"@id":95},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-20327","Cybersecurity","CVE-2021-20327, CVE-2021-20327 vulnerability, CVE-2021-20327 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[99],{"Operator":26,"Negate":26,"Nodes":100},[101],{"Operator":102,"Negate":26,"CPEMatch":103},"OR",[104],{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":105,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"8D8F8927-1BA6-41A4-B469-212EF19AD4C0",[],[],{"lastModified":11,"cacheTime":109,"version":40},1792362827869,{"score":111,"band":112,"action":113,"scoredAt":114},22,"Low","Monitor","2026-10-16T06:50:35.002798+00:00"]