[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fCeoe0t9qbBf_2K8NbnwdygX83OBdsfD4AKpoO41Hv8k":3,"g5a-risk:CVE-2020-28493":137},{"success":4,"data":5,"meta":135},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":42,"epssPercentile":26,"epssTimeSeries":43,"severity":44,"affectedProducts":45,"affectedProductsCount":56,"references":57,"referencesCount":39,"weaknesses":81,"weaknessesCount":90,"isActivelyExploited":91,"cisaInfo":26,"otxData":26,"relatedBlogPosts":92,"seoMetadata":93,"configurations":118,"relatedVendorCves":133,"notableEvents":134},"CVE-2020-28493","What is CVE-2020-28493?","This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.","This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of mu...","2021-02-01T20:15:12.517","2023-11-07T03:21:22.577",5.3,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:N\u002FA:L",{"CVSSMetricV31":15,"CVSSMetricV30":26,"CVSSMetricV2":33,"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":23,"IntegrityImpact":23,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":22,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","LOW","NONE","UNCHANGED","MEDIUM",null,3.9,1.4,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":27,"ImpactScore":28},"bae035ff-b466-4ff4-94d0-fc9efd9e1730","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":22,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},[34],{"Source":17,"Type":18,"CVSSData":35,"BaseSeverity":25,"ExploitabilityScore":40,"ImpactScore":41,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":26},{"Version":36,"VectorString":37,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":38,"BaseScore":39,"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:N\u002FAC:L\u002FAu:N\u002FC:N\u002FI:N\u002FA:P","PARTIAL",5,10,2.9,0.03546,[42,42,42,42,42,42,42],"Medium",[46,51],{"vendor":47,"product":48,"version":49,"criteria":50,"vulnerable":4},"palletsprojects","jinja","*","cpe:2.3:a:palletsprojects:jinja:*:*:*:*:*:*:*:*",{"vendor":52,"product":53,"version":54,"criteria":55,"vulnerable":4},"fedoraproject","fedora","33","cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",2,[58,63,68,72,76],{"url":59,"source":60,"tags":61},"https:\u002F\u002Fgithub.com\u002Fpallets\u002Fjinja\u002Fblob\u002Fab81fd9c277900c85da0c322a2ff9d68a235b2e6\u002Fsrc\u002Fjinja2\u002Futils.py%23L20","GitHub",[62],"Broken Link",{"url":64,"source":60,"tags":65},"https:\u002F\u002Fgithub.com\u002Fpallets\u002Fjinja\u002Fpull\u002F1343",[66,67],"Patch","Third Party Advisory",{"url":69,"source":70,"tags":71},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FPVAKCOO7VBVUBM3Q6CBBTPBFNP5NDXF4\u002F","Fedoraproject",[],{"url":73,"source":74,"tags":75},"https:\u002F\u002Fsecurity.gentoo.org\u002Fglsa\u002F202107-19","Gentoo",[67],{"url":77,"source":78,"tags":79},"https:\u002F\u002Fsnyk.io\u002Fvuln\u002FSNYK-PYTHON-JINJA2-1012994","Snyk",[80,67],"Exploit",[82],{"id":83,"name":84,"description":85,"extendedDescription":86,"status":87,"abstraction":88,"structure":89},"CWE-400","Uncontrolled Resource Consumption","The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.","Limited resources include memory, file system storage, database connection pool entries, and CPU. If an attacker can trigger the allocation of these limited resources, but the number or size of the resources is not controlled, then the attacker could cause a denial of service that consumes all available resources. This would prevent valid users from accessing the product, and it could potentially have an impact on the surrounding environment. For example, a memory exhaustion attack against an application could slow down the application as well as its host operating system.\nThere are at least three distinct scenarios which can commonly lead to resource exhaustion:\nResource exhaustion problems are often result due to an incorrect implementation of the following situations:","Draft","Class","Simple",1,false,[],{"title":94,"metaDescription":95,"keywords":96,"canonicalUrl":97,"structuredData":98},"What is CVE-2020-28493? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2020-28493, a medium severity cyber security vulnerability from 2021. This affects the package jinja2 from 0.0.0 and before 2.1...","CVE-2020-28493, CVE-2020-28493 vulnerability, CVE-2020-28493 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, palletsprojects security, fedoraproject security, jinja vulnerability, fedora vulnerability","\u002Fwhat-is\u002Fcve-2020-28493",{"@context":99,"@type":100,"headline":94,"description":95,"datePublished":10,"dateModified":11,"author":101,"publisher":105,"about":109,"mainEntityOfPage":113,"articleSection":116,"keywords":117},"https:\u002F\u002Fschema.org","TechArticle",{"@type":102,"name":103,"url":104},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":102,"name":103,"url":104,"logo":106},{"@type":107,"url":108},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":110,"name":6,"description":111,"additionalType":112},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":114,"@id":115},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2020-28493","Cybersecurity","CVE-2020-28493, CVE-2020-28493 vulnerability, CVE-2020-28493 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[119,127],{"Operator":26,"Negate":26,"Nodes":120},[121],{"Operator":122,"Negate":26,"CPEMatch":123},"OR",[124],{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":125,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":126,"VersionEndIncluding":26},"B4C4464D-515B-4608-96F0-D7282C5AA582","2.11.3",{"Operator":26,"Negate":26,"Nodes":128},[129],{"Operator":122,"Negate":26,"CPEMatch":130},[131],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":132,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"E460AA51-FCDA-46B9-AE97-E6676AA5E194",[],[],{"lastModified":11,"cacheTime":136,"version":36},1792283146258,{"score":138,"band":44,"action":139,"scoredAt":140},44,"Plan remediation","2026-10-16T06:50:23.979218+00:00"]