CVE-2018-11796
7.5 · HIGHOverview
CVE-2018-11796 is a high-severity vulnerability affecting apache tika. It was published on October 9, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from apache. Update tika to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | tika | 0.1 | Affected |
References
Frequently Asked Questions
What is CVE-2018-11796?
CVE-2018-11796 is a high-severity vulnerability affecting apache tika. It was published on October 9, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
How severe is CVE-2018-11796?
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-11796?
Check the references section for vendor advisories and patches from apache. Update tika to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-11796?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-11796 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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