CVE-2018-11796
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Tika
PublishedOct 9, 2018
First seenOct 9, 2018
How to fix
Update
- org.apache.tika:tika-core1.19.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tika | 0.1 ≤ v ≤ 1.19 | — |
| org.apache.tika:tika-coreMaven | 0.1 ≤ v < 1.19.1 | 1.19.1 |
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