Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2019-17558

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Published: Dec 30, 2019 | Modified: Oct 27, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
4.6 MEDIUM
AV:N/AC:H/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Ubuntu
HIGH
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-17558
CWEhttps://cwe.mitre.org/data/definitions/74.html

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 setting params.resource.loader.enabled by defining a response writer with that setting set to true. Defining a response writer requires configuration API access. Solr 8.4 removed the params resource loader entirely, and only enables the configset-provided template rendering when the configset is trusted (has been uploaded by an authenticated user).

Weakness

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Affected Software

NameVendorStart VersionEnd Version
SolrApache5.0.0 (including)7.7.3 (excluding)
SolrApache8.0.0 (including)8.4.0 (excluding)
Lucene-solrUbuntubionic*
Lucene-solrUbuntudisco*
Lucene-solrUbuntueoan*
Lucene-solrUbuntugroovy*
Lucene-solrUbuntuhirsute*
Lucene-solrUbuntuimpish*
Lucene-solrUbuntukinetic*
Lucene-solrUbuntulunar*
Lucene-solrUbuntumantic*
Lucene-solrUbuntutrusty*
Lucene-solrUbuntutrusty/esm*
Lucene-solrUbuntuxenial*

Potential Mitigations

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use