CVE-2018-11796

Summary

In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache TikaApache Tomcat 0.1 to 1.19affected

Weaknesses

  • Denial of Service Vulnerability

ADP Enrichment

CVE Program Container

Additional References

References