SARA / Free Tools / CVE / CVE-2019-17558

CVE-2019-17558 — Apache Solr VelocityResponseWriter Plug-In Remote Code Execution Vulnerability

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset `velocity/` directory or as a parameter. A user defined configset could contain rende

CVSS
— —
EPSS
94.47% (top 0.00%)
CWE
—
Published
2019-12-30T16:36:08.000Z
Last modified
2025-10-21T23:35:54.150Z
CVSS vector
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CISA KEV — Actively Exploited
Added to KEV
2021-11-03
BOD 22-01 due
2022-05-03
Ransomware use
Unknown
View KEV detail
CVE-2019-17558 on CISA KEV →

01What is this vulnerability?

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset `velocity/` directory or as a parameter. A user defined configset could contain renderable, potentially malicious, templates. Parameter provided templates are disabled by default, but can be enabled by…

02Affected products

VendorProductVersions
na / Apache SolrApache Solr 5.0.0 to Apache Solr 8.3.1

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-03. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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