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Vulnerability record · CVE-2018-11761 · published 19 September 2018

CVE-2018-11761: Apache tika xml external entity (xxe) vulnerability

Apache · Tika

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.

7.5 CVSS 3.0 High EPSS 8.6% · top 5.1% CWE-611 · XML external entity (XXE)
7.5CVSS 3.0 base score, v2 5.0
8.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/105514 Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/5553e10bba5604117967466618f219c0cae710075819c70cfb3fb421%40%3Cdev.tika.apache.org%3
https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apac
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PatchThird Party Advisory
http://www.securityfocus.com/bid/105514 Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/5553e10bba5604117967466618f219c0cae710075819c70cfb3fb421%40%3Cdev.tika.apache.org%3
https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apac
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-11761), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.