{"cve":"CVE-2016-4434","nvd":{"published":"2017-09-30T01:29:00.413","modified":"2026-06-17T00:47:32.970","status":"Modified","description":"Apache Tika before 1.13 does not properly initialize the XML parser or choose handlers, which might allow remote attackers to conduct XML External Entity (XXE) attacks via vectors involving (1) spreadsheets in OOXML files and (2) XMP metadata in PDF and other file formats, a related issue to CVE-2016-2175.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-611"],"references":["http://rhn.redhat.com/errata/RHSA-2017-0248.html","http://rhn.redhat.com/errata/RHSA-2017-0249.html","http://rhn.redhat.com/errata/RHSA-2017-0272.html","http://www.securityfocus.com/archive/1/538500/100/0/threaded","https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E"],"products":["apache:tika"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2016-4434","score":0.03573,"percentile":0.89371,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4xr4-4c65-hj7f","url":"https://osv.dev/vulnerability/GHSA-4xr4-4c65-hj7f","summary":"Apache Tika does not properly initialize the XML parser or choose handlers","modified":"2023-11-08T03:58:28.747587Z","packages":[{"ecosystem":"Maven","name":"org.apache.tika:tika-core","purl":"pkg:maven/org.apache.tika/tika-core","ranges":["<1.13"],"fixed":["1.13"]}]}],"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."]}