XXE in Apache Tika
CVE-2018-11761
In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity expansion vulnerability which can lead to a denial of service attack.
Vulnerability class: XXE (XML External Entity)
EPSS: 0.096 (95.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apache Tika
- Apache Software Foundation Tika — versions 0.1 to 1.18
- Oracle Business_process_management_suite — versions 12.1.3.0.0, 12.2.1.3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-11761?
- CVE-2018-11761 is a high-severity vulnerability in Apache Tika, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2018-09-19.
- How severe is CVE-2018-11761?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-11761 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.