CVE-2018-8026

Description

This vulnerability in Apache Solr 6.0.0 to 6.6.4 and 7.0.0 to 7.3.1 relates to an XML external entity expansion (XXE) in Solr config files (currency.xml, enumsConfig.xml referred from schema.xml, TIKA parsecontext config file). In addition, Xinclude functionality provided in these config files is also affected in a similar way. The vulnerability can be used as XXE using file/ftp/http protocols in order to read arbitrary local files from the Solr server or the internal network. The manipulated files can be uploaded as configsets using Solr's API, allowing to exploit that vulnerability.

How to fix CVE-2018-8026

To remediate CVE-2018-8026, upgrade the affected package to a fixed version below.

• —upgrade to 7.4.0 or later

Is CVE-2018-8026 being exploited?

Low — EPSS is 4.3%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• >= 7.0.0, < 7.4.0

CVSS scores

References (9)

• ADVISORYgithub.com/advisories/GHSA-7px3-6f6g-hxcj
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2018-8026
• WEBgithub.com/apache/lucene-solr/commit/1880d4824e6c5f98170b9a00aad1d437ee2aa12
• WEBgithub.com/apache/lucene-solr/commit/3aa6086ed99fa7158d423dc7c33dae6da466b09