[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fleZMsd5yHEr6YJEE00Pb_XLCnzL4r_J4KhU5WVbUR8Y":3,"g5a-risk:CVE-2026-87830":121},{"success":4,"data":5,"meta":118},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":33,"epssPercentile":27,"epssTimeSeries":34,"severity":35,"affectedProducts":36,"affectedProductsCount":42,"references":43,"referencesCount":55,"weaknesses":56,"weaknessesCount":42,"isActivelyExploited":65,"cisaInfo":27,"otxData":27,"relatedBlogPosts":66,"seoMetadata":67,"configurations":92,"relatedVendorCves":109,"notableEvents":110},"CVE-2026-87830","What is CVE-2026-87830?","In the StAX streaming WS-SecurityPolicy validator, certain relative or unsupported XPath expressions can be converted into paths that never match the actual XML element path. A remote SOAP peer may therefore send a required element without the expected signature or encryption.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","In the StAX streaming WS-SecurityPolicy validator, certain relative or unsupported XPath expressions can be converted into paths that never match the actual ...","2026-09-30T12:17:14.087","2026-10-06T17:26:47.927",9.1,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":30,"CVSSMetricV2":31,"CVSSMetricV40":32},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"134c704f-9b21-4f2e-91b3-4a467353bcc0","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH","CRITICAL",null,3.9,5.2,[],[],[],0.00213,[33,33,33,33,33,33,33],"Critical",[37],{"vendor":38,"product":39,"version":40,"criteria":41,"vulnerable":4},"apache","wss4j","*","cpe:2.3:a:apache:wss4j:*:*:*:*:*:*:*:*",1,[44,49],{"url":45,"source":46,"tags":47},"https:\u002F\u002Flists.apache.org\u002Fthread.html\u002Flwlozb1x20d16f9dnyvoygc9rrhzq2vn","Apache",[48],"Vendor Advisory",{"url":50,"source":51,"tags":52},"http:\u002F\u002Fwww.openwall.com\u002Flists\u002Foss-security\u002F2026\u002F09\u002F30\u002F9","Openwall",[53,54],"Mailing List","Third Party Advisory",2,[57],{"id":58,"name":59,"description":60,"extendedDescription":61,"status":62,"abstraction":63,"structure":64},"CWE-917","Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')","The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.","Frameworks such as Java Server Page (JSP) allow a developer to insert executable expressions within otherwise-static content. When the developer is not aware of the executable nature of these expressions and\u002For does not disable them, then if an attacker can inject expressions, this could lead to code execution or other unexpected behaviors.","Incomplete","Base","Simple",false,[],{"title":68,"metaDescription":69,"keywords":70,"canonicalUrl":71,"structuredData":72},"What is CVE-2026-87830? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2026-87830, a critical severity cyber security vulnerability from 2026. In the StAX streaming WS-SecurityPolicy validator, cert...","CVE-2026-87830, CVE-2026-87830 vulnerability, CVE-2026-87830 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2026, CVSS score, exploit, patch, remediation, apache security, wss4j vulnerability","\u002Fwhat-is\u002Fcve-2026-87830",{"@context":73,"@type":74,"headline":68,"description":69,"datePublished":10,"dateModified":11,"author":75,"publisher":79,"about":83,"mainEntityOfPage":87,"articleSection":90,"keywords":91},"https:\u002F\u002Fschema.org","TechArticle",{"@type":76,"name":77,"url":78},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":76,"name":77,"url":78,"logo":80},{"@type":81,"url":82},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":84,"name":6,"description":85,"additionalType":86},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":88,"@id":89},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2026-87830","Cybersecurity","CVE-2026-87830, CVE-2026-87830 vulnerability, CVE-2026-87830 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[93],{"Operator":27,"Negate":27,"Nodes":94},[95],{"Operator":96,"Negate":65,"CPEMatch":97},"OR",[98,101,105],{"Vulnerable":4,"Criteria":41,"MatchCriteriaID":99,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":100,"VersionEndIncluding":27},"A3409718-5467-407D-9B51-14E58B6D2F68","2.4.4",{"Vulnerable":4,"Criteria":41,"MatchCriteriaID":102,"VersionStartExcluding":27,"VersionStartIncluding":103,"VersionEndExcluding":104,"VersionEndIncluding":27},"31AFF243-7BCE-44BC-85C5-6FE257642C13","3.0.0","3.0.6",{"Vulnerable":4,"Criteria":41,"MatchCriteriaID":106,"VersionStartExcluding":27,"VersionStartIncluding":107,"VersionEndExcluding":108,"VersionEndIncluding":27},"20E76C98-444D-4DB5-91E0-90E84C196158","4.0.0","4.0.2",[],[111],{"id":112,"eventType":113,"eventTime":114,"details":115,"label":116,"color":117},"a0d77cfd-1a9e-4244-9cc8-1d80db01ebf8","NEW_NVD","2026-10-01T04:01:46.778851+00:00","New CVE added to NVD","Published to NVD","blue",{"lastModified":11,"cacheTime":119,"version":120},1792248928094,"2.0",{"score":122,"band":123,"action":124,"scoredAt":125},54,"Medium","Plan remediation","2026-10-16T07:18:19.6828+00:00"]