[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhA3XzS605qWkIV9yXH0JEAOJ20rWszzJb_uAUkVk31M":3,"g5a-risk:CVE-2021-21300":291},{"success":4,"data":5,"meta":289},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":47,"epssPercentile":26,"epssTimeSeries":48,"severity":49,"affectedProducts":50,"affectedProductsCount":85,"references":86,"referencesCount":145,"weaknesses":146,"weaknessesCount":155,"isActivelyExploited":156,"cisaInfo":26,"otxData":26,"relatedBlogPosts":157,"seoMetadata":158,"configurations":183,"relatedVendorCves":273,"notableEvents":274},"CVE-2021-21300","What is CVE-2021-21300?","Git is an open-source distributed revision control system. In affected versions of Git a specially crafted repository that contains symbolic links as well as files using a clean\u002Fsmudge filter such as Git LFS, may cause just-checked out script to be executed while cloning onto a case-insensitive file system such as NTFS, HFS+ or APFS (i.e. the default file systems on Windows and macOS). Note that clean\u002Fsmudge filters have to be configured for that. Git for Windows configures Git LFS by default, and is therefore vulnerable. The problem has been patched in the versions published on Tuesday, March 9th, 2021. As a workaound, if symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. Likewise, if no clean\u002Fsmudge filters such as Git LFS are configured globally (i.e. _before_ cloning), the attack is foiled. As always, it is best to avoid cloning repositories from untrusted sources. The earliest impacted version is 2.14.2. The fix versions are: 2.30.1, 2.29.3, 2.28.1, 2.27.1, 2.26.3, 2.25.5, 2.24.4, 2.23.4, 2.22.5, 2.21.4, 2.20.5, 2.19.6, 2.18.5, 2.17.62.17.6.","Git is an open-source distributed revision control system. In affected versions of Git a specially crafted repository that contains symbolic links as well 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Link Resolution Before File Access ('Link Following')","The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.","","Draft","Base","Simple",1,false,[],{"title":159,"metaDescription":160,"keywords":161,"canonicalUrl":162,"structuredData":163},"What is CVE-2021-21300? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-21300, a high severity cyber security vulnerability from 2021. High exploit probability (88.5%). Git is an open-source dis...","CVE-2021-21300, CVE-2021-21300 vulnerability, CVE-2021-21300 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, git-scm security, fedoraproject security, apple security, debian security, git vulnerability, fedora vulnerability, xcode vulnerability, macos vulnerability","\u002Fwhat-is\u002Fcve-2021-21300",{"@context":164,"@type":165,"headline":159,"description":160,"datePublished":10,"dateModified":11,"author":166,"publisher":170,"about":174,"mainEntityOfPage":178,"articleSection":181,"keywords":182},"https:\u002F\u002Fschema.org","TechArticle",{"@type":167,"name":168,"url":169},"Organization","Precursor 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research",[184,244,254,267],{"Operator":26,"Negate":26,"Nodes":185},[186],{"Operator":187,"Negate":26,"CPEMatch":188},"OR",[189,192,196,200,204,208,212,216,220,224,228,232,236,240,242],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":190,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":191},"B122112C-041C-4E35-A95B-09A6FEB34E66","2.14.2",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":193,"VersionStartExcluding":26,"VersionStartIncluding":194,"VersionEndExcluding":195,"VersionEndIncluding":26},"F22EC766-C4F5-478C-812C-DC0ECE2B5017","2.17.0","2.17.6",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":197,"VersionStartExcluding":26,"VersionStartIncluding":198,"VersionEndExcluding":199,"VersionEndIncluding":26},"852AD237-C1C7-4C6D-8CD0-46FC6CF3CA2A","2.18.0","2.18.5",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":201,"VersionStartExcluding":26,"VersionStartIncluding":202,"VersionEndExcluding":203,"VersionEndIncluding":26},"3964581A-A764-44AC-96AA-0FBAC723876C","2.19.0","2.19.6",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":205,"VersionStartExcluding":26,"VersionStartIncluding":206,"VersionEndExcluding":207,"VersionEndIncluding":26},"6B873D83-F63E-4183-8DF5-FB2CA9F7442A","2.20.0","2.20.5",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":209,"VersionStartExcluding":26,"VersionStartIncluding":210,"VersionEndExcluding":211,"VersionEndIncluding":26},"28F16A48-7467-428E-A797-F17C1B33D845","2.21.0","2.21.4",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":213,"VersionStartExcluding":26,"VersionStartIncluding":214,"VersionEndExcluding":215,"VersionEndIncluding":26},"344A8A7D-A440-46D2-A424-FE9576211B66","2.22.0","2.22.5",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":217,"VersionStartExcluding":26,"VersionStartIncluding":218,"VersionEndExcluding":219,"VersionEndIncluding":26},"E08D59A6-5026-4E64-A685-3F3C61384AA9","2.23.0","2.23.4",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":221,"VersionStartExcluding":26,"VersionStartIncluding":222,"VersionEndExcluding":223,"VersionEndIncluding":26},"800D0A90-9ABA-49AE-AC15-FAB0EAD8E6B9","2.24.0","2.24.4",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":225,"VersionStartExcluding":26,"VersionStartIncluding":226,"VersionEndExcluding":227,"VersionEndIncluding":26},"F73CA1C3-0970-4A25-86DF-D6BCF6A245D4","2.25.0","2.25.5",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":229,"VersionStartExcluding":26,"VersionStartIncluding":230,"VersionEndExcluding":231,"VersionEndIncluding":26},"C55EAADC-86F7-48AD-ADE6-EAC35900ACCE","2.26.0","2.26.3",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":233,"VersionStartExcluding":26,"VersionStartIncluding":234,"VersionEndExcluding":235,"VersionEndIncluding":26},"60B8D72E-7390-4748-85C3-2143B473B8A2","2.29.0","2.29.3",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":237,"VersionStartExcluding":26,"VersionStartIncluding":238,"VersionEndExcluding":239,"VersionEndIncluding":26},"3B4C27E1-AB72-4ABB-8BEF-BA317C229CF8","2.30.0","2.30.2",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":241,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"1A303CF1-7129-4C24-B6EB-03E7F5A51FB7",{"Vulnerable":4,"Criteria":61,"MatchCriteriaID":243,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"8920211C-E92D-41FD-BBFA-4702FB07B4D4",{"Operator":26,"Negate":26,"Nodes":245},[246],{"Operator":187,"Negate":26,"CPEMatch":247},[248,250,252],{"Vulnerable":4,"Criteria":66,"MatchCriteriaID":249,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"36D96259-24BD-44E2-96D9-78CE1D41F956",{"Vulnerable":4,"Criteria":69,"MatchCriteriaID":251,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"E460AA51-FCDA-46B9-AE97-E6676AA5E194",{"Vulnerable":4,"Criteria":72,"MatchCriteriaID":253,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"A930E247-0B43-43CB-98FF-6CE7B8189835",{"Operator":255,"Negate":26,"Nodes":256},"AND",[257,262],{"Operator":187,"Negate":26,"CPEMatch":258},[259],{"Vulnerable":4,"Criteria":76,"MatchCriteriaID":260,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":261,"VersionEndIncluding":26},"BD2A6382-E564-4CF6-AE51-62A021766671","12.5",{"Operator":187,"Negate":26,"CPEMatch":263},[264],{"Vulnerable":26,"Criteria":79,"MatchCriteriaID":265,"VersionStartExcluding":26,"VersionStartIncluding":266,"VersionEndExcluding":26,"VersionEndIncluding":26},"FD77D019-6FF7-4D3B-BE07-65C7A6879F12","11.0",{"Operator":26,"Negate":26,"Nodes":268},[269],{"Operator":187,"Negate":26,"CPEMatch":270},[271],{"Vulnerable":4,"Criteria":84,"MatchCriteriaID":272,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",[],[275,282],{"id":276,"eventType":277,"eventTime":278,"details":279,"label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EPSS score decreased by 0.356 on 2023-12-30","EPSS Score Decreased","green",{"id":283,"eventType":284,"eventTime":285,"details":286,"label":287,"color":288},"8b882d90-7a6d-4512-9a4f-e019396bb046","HIGH_EPSS_DELTA","2025-11-22T04:05:55.148209+00:00","Daily EPSS score increased by 0.315 on 2023-12-30","EPSS Score Increased","red",{"lastModified":11,"cacheTime":290,"version":40},1792256953355,{"score":292,"band":293,"action":294,"scoredAt":295},67,"Medium","Plan remediation","2026-10-16T06:50:38.842821+00:00"]