MEDIUM

CVE-2018-8026

CVSS v3

5.5

MEDIUM

EPSS Score

9.0 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

org.apache.solr:solr-coreMavenfrom 6.0.0 · fixed in 6.6.5

Vendor advisories

CVE-2018-8026 Red Hat Product Security
solr: XML external entity expansion in config files allows for arbitrary file read

Full record on NVD

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.

Technical details

Published: 2018-07-05

Frequently asked questions

What is CVE-2018-8026?

Is CVE-2018-8026 actively exploited?

Active exploitation of CVE-2018-8026 has not been confirmed. Its EPSS score was 9.0% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-8026?

CVE-2018-8026 has a CVSS v3 base score of 5.5 (MEDIUM severity).

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