{"cve":"CVE-2011-2481","nvd":{"published":"2011-08-15T21:55:01.910","modified":"2026-06-16T23:31:25.447","status":"Modified","description":"Apache Tomcat 7.0.x before 7.0.17 permits web applications to replace an XML parser used for other web applications, which allows local users to read or modify the (1) web.xml, (2) context.xml, or (3) tld files of arbitrary web applications via a crafted application that is loaded earlier than the target application.  NOTE: this vulnerability exists because of a CVE-2009-0783 regression.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://marc.info/?l=bugtraq&m=139344343412337&w=2","http://secunia.com/advisories/57126","http://securitytracker.com/id?1025924","http://svn.apache.org/viewvc?view=revision&revision=1137753","http://svn.apache.org/viewvc?view=revision&revision=1138788"],"products":["apache:tomcat"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-2481","score":0.0084,"percentile":0.57856,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r7c8-hghc-2mp8","url":"https://osv.dev/vulnerability/GHSA-r7c8-hghc-2mp8","summary":"Apache Tomcat Allows Replacing of XML Parser","modified":"2024-02-21T21:35:06Z","packages":[{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=7.0.0 <7.0.17"],"fixed":["7.0.17"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}