[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fazE3_okrTL-lT71YjZpCCBeUL1VBJvZ6ia5hfFkYH3E":3,"g5a-risk:CVE-2026-106509":173},{"success":4,"data":5,"meta":170},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":41,"epssPercentile":28,"epssTimeSeries":42,"severity":43,"affectedProducts":44,"affectedProductsCount":56,"references":57,"referencesCount":79,"weaknesses":80,"weaknessesCount":95,"isActivelyExploited":96,"cisaInfo":28,"otxData":28,"relatedBlogPosts":97,"seoMetadata":98,"configurations":123,"relatedVendorCves":161,"notableEvents":162},"CVE-2026-106509","What is CVE-2026-106509?","Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage\u002Fplugin-techdocs-node package is affected by improper validation of mkdocs theme configuration in techdocs. When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in mkdocs.yml that cause arbitrary code execution during the documentation build process. This issue is fixed in versions 1.14.6 and 1.15.4.","Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage\u002Fplugin-techdocs-node package is affected by improper validatio...","2026-10-06T22:17:06.463","2026-10-09T17:34:17.12",8.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":38,"CVSSMetricV2":39,"CVSSMetricV40":40},[16,31],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":29,"ImpactScore":30},"security-advisories@github.com","Secondary",{"Version":20,"VectorString":21,"AttackVector":22,"AttackComplexity":23,"PrivilegesRequired":24,"UserInteraction":25,"Scope":26,"ConfidentialityImpact":23,"IntegrityImpact":24,"AvailabilityImpact":24,"BaseScore":27,"BaseSeverity":23,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":28,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"3.1","CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:L\u002FUI:N\u002FS:C\u002FC:H\u002FI:L\u002FA:L","NETWORK","HIGH","LOW","NONE","CHANGED",7.7,null,1.8,5.3,{"Source":32,"Type":33,"CVSSData":34,"ExploitabilityScore":36,"ImpactScore":37},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":22,"AttackComplexity":24,"PrivilegesRequired":24,"UserInteraction":25,"Scope":35,"ConfidentialityImpact":23,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":23,"ExploitCodeMaturity":28,"RemediationLevel":28,"ReportConfidence":28,"TemporalScore":28,"TemporalSeverity":28,"ConfidentialityRequirement":28,"IntegrityRequirement":28,"AvailabilityRequirement":28,"ModifiedAttackVector":28,"ModifiedAttackComplexity":28,"ModifiedPrivilegesRequired":28,"ModifiedUserInteraction":28,"ModifiedScope":28,"ModifiedConfidentialityImpact":28,"ModifiedIntegrityImpact":28,"ModifiedAvailabilityImpact":28,"EnvironmentalScore":28,"EnvironmentalSeverity":28},"UNCHANGED",2.8,5.9,[],[],[],0.0037,[41,41,41,41,41,41,41],"High",[45,50,53],{"vendor":46,"product":47,"version":48,"criteria":49,"vulnerable":4},"linuxfoundation","backstage_plugin-techdocs-node","*","cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*",{"vendor":46,"product":51,"version":48,"criteria":52,"vulnerable":4},"backstage","cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",{"vendor":46,"product":51,"version":54,"criteria":55,"vulnerable":4},"1.51.0","cpe:2.3:a:linuxfoundation:backstage:1.51.0:-:*:*:*:*:*:*",3,[58,64,67,71,74],{"url":59,"source":60,"tags":61},"https:\u002F\u002Fgithub.com\u002Fbackstage\u002Fbackstage\u002Fcommit\u002F02cd7cdbb18b687446277b5602adaee7f1d53cbb","GitHub",[62,63],"Exploit","Patch",{"url":65,"source":60,"tags":66},"https:\u002F\u002Fgithub.com\u002Fbackstage\u002Fbackstage\u002Fcommit\u002Fa900a9953c8f7ad3ba1906d1d257725a9996cc9d",[62,63],{"url":68,"source":60,"tags":69},"https:\u002F\u002Fgithub.com\u002Fbackstage\u002Fbackstage\u002Freleases\u002Ftag\u002Fv1.50.5",[70],"Release Notes",{"url":72,"source":60,"tags":73},"https:\u002F\u002Fgithub.com\u002Fbackstage\u002Fbackstage\u002Freleases\u002Ftag\u002Fv1.54.6",[70],{"url":75,"source":60,"tags":76},"https:\u002F\u002Fgithub.com\u002Fbackstage\u002Fbackstage\u002Fsecurity\u002Fadvisories\u002FGHSA-8w7q-29mw-gf5c",[77,78],"Vendor Advisory","Mitigation",5,[81,89],{"id":82,"name":83,"description":84,"extendedDescription":85,"status":86,"abstraction":87,"structure":88},"CWE-94","Improper Control of Generation of Code ('Code Injection')","The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.","When a product allows a user's input to contain code syntax, it might be possible for an attacker to craft the code in such a way that it will alter the intended control flow of the product. Such an alteration could lead to arbitrary code execution.\nInjection problems encompass a wide variety of issues -- all mitigated in very different ways. For this reason, the most effective way to discuss these weaknesses is to note the distinct features which classify them as injection weaknesses. The most important issue to note is that all injection problems share one thing in common -- i.e., they allow for the injection of control plane data into the user-controlled data plane. This means that the execution of the process may be altered by sending code in through legitimate data channels, using no other mechanism. While buffer overflows, and many other flaws, involve the use of some further issue to gain execution, injection problems need only for the data to be parsed. The most classic instantiations of this category of weakness are SQL injection and format string vulnerabilities.","Draft","Base","Simple",{"id":90,"name":91,"description":92,"extendedDescription":93,"status":94,"abstraction":87,"structure":88},"CWE-1336","Improper Neutralization of Special Elements Used in a Template Engine","The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.","Many web applications use template engines that allow developers to insert externally-influenced values into free text or messages in order to generate a full web page, document, message, etc. Such engines include Twig, Jinja2, Pug, Java Server Pages, FreeMarker, Velocity, ColdFusion, Smarty, and many others - including PHP itself. Some CMS (Content Management Systems) also use templates.\nTemplate engines often have their own custom command or expression language. If an attacker can influence input into a template before it is processed, then the attacker can invoke arbitrary expressions, i.e. perform injection attacks. For example, in some template languages, an attacker could inject the expression \"{{7*7}}\" and determine if the output returns \"49\" instead. The syntax varies depending on the language.\nIn some cases, XSS-style attacks can work, which can obscure the root cause if the developer does not closely investigate the root cause of the error.\nTemplate engines can be used on the server or client, so both \"sides\" could be affected by injection. The mechanisms of attack or the affected technologies might be different, but the mistake is fundamentally the same.","Incomplete",2,false,[],{"title":99,"metaDescription":100,"keywords":101,"canonicalUrl":102,"structuredData":103},"What is CVE-2026-106509? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2026-106509, a high severity cyber security vulnerability from 2026. Backstage is an open framework for building developer port...","CVE-2026-106509, CVE-2026-106509 vulnerability, CVE-2026-106509 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2026, CVSS score, exploit, patch, remediation, linuxfoundation security, backstage_plugin-techdocs-node vulnerability, backstage vulnerability","\u002Fwhat-is\u002Fcve-2026-106509",{"@context":104,"@type":105,"headline":99,"description":100,"datePublished":10,"dateModified":11,"author":106,"publisher":110,"about":114,"mainEntityOfPage":118,"articleSection":121,"keywords":122},"https:\u002F\u002Fschema.org","TechArticle",{"@type":107,"name":108,"url":109},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":107,"name":108,"url":109,"logo":111},{"@type":112,"url":113},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":115,"name":6,"description":116,"additionalType":117},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":119,"@id":120},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2026-106509","Cybersecurity","CVE-2026-106509, CVE-2026-106509 vulnerability, CVE-2026-106509 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[124,136],{"Operator":28,"Negate":28,"Nodes":125},[126],{"Operator":127,"Negate":96,"CPEMatch":128},"OR",[129,132],{"Vulnerable":4,"Criteria":49,"MatchCriteriaID":130,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":131,"VersionEndIncluding":28},"F5189301-5EC3-4F9F-952B-7993F3BFBF06","1.14.6",{"Vulnerable":4,"Criteria":49,"MatchCriteriaID":133,"VersionStartExcluding":28,"VersionStartIncluding":134,"VersionEndExcluding":135,"VersionEndIncluding":28},"5CB4C5CD-5A68-42D5-AE7F-65362C0E7165","1.15.0","1.15.4",{"Operator":28,"Negate":28,"Nodes":137},[138],{"Operator":127,"Negate":96,"CPEMatch":139},[140,143,147,149,152,155,158],{"Vulnerable":4,"Criteria":52,"MatchCriteriaID":141,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":142,"VersionEndIncluding":28},"FEBB527C-B9CC-4ACD-ACE6-5E42C47576B7","1.50.5",{"Vulnerable":4,"Criteria":52,"MatchCriteriaID":144,"VersionStartExcluding":28,"VersionStartIncluding":145,"VersionEndExcluding":146,"VersionEndIncluding":28},"949CA2FA-BF88-425F-910D-3D7E817E6420","1.51.1","1.54.6",{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":148,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"91628A7C-3017-4ACD-A100-330BB9F983B2",{"Vulnerable":4,"Criteria":150,"MatchCriteriaID":151,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"cpe:2.3:a:linuxfoundation:backstage:1.51.0:next0:*:*:*:*:*:*","C5AEDDFD-39AE-4D5C-91C8-49DA83DF407F",{"Vulnerable":4,"Criteria":153,"MatchCriteriaID":154,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"cpe:2.3:a:linuxfoundation:backstage:1.51.0:next1:*:*:*:*:*:*","8C1DE1E3-862E-4512-A66B-9804B2451D7F",{"Vulnerable":4,"Criteria":156,"MatchCriteriaID":157,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"cpe:2.3:a:linuxfoundation:backstage:1.51.0:next2:*:*:*:*:*:*","C5D0AF99-42C1-4AD2-84D6-11327EFD314B",{"Vulnerable":4,"Criteria":159,"MatchCriteriaID":160,"VersionStartExcluding":28,"VersionStartIncluding":28,"VersionEndExcluding":28,"VersionEndIncluding":28},"cpe:2.3:a:linuxfoundation:backstage:1.51.0:next3:*:*:*:*:*:*","3796F724-6F1F-45CA-BB1F-5F2DCCC37986",[],[163],{"id":164,"eventType":165,"eventTime":166,"details":167,"label":168,"color":169},"4bef311b-9504-4e43-8581-8d76db849660","NEW_NVD","2026-10-07T04:02:51.615041+00:00","New CVE added to NVD","Published to NVD","blue",{"lastModified":11,"cacheTime":171,"version":172},1792437324361,"2.0",{"score":174,"band":175,"action":176,"scoredAt":177},49,"Medium","Plan remediation","2026-10-16T07:18:35.768761+00:00"]