← Vulnerability feed

Vulnerability record · CVE-2019-12409 · published 18 November 2019

CVE-2019-12409: Apache solr unrestricted file upload vulnerability

Apache · Solr

The 8.1.1 and 8.2.0 releases of Apache Solr contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default solr.in.sh configuration file shipping with Solr. If you use the default solr.in.sh file from the affected releases, then JMX monitoring will be enabled and exposed on RMI_PORT (default=18983), without any authentication. If this port is opened for inbound traffic in your firewall, then anyone with network access to your Solr nodes will be able to access JMX, which may in turn allow them to upload malicious code for execution on the Solr server.

9.8 CVSS 3.1 Critical EPSS 21% · top 2.5% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score, v2 7.5
21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The 8.1.1 and 8.2.0 releases of Apache Solr contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default solr.in.sh configuration file shipping with Solr. If you use the default solr.in.sh file from the affected releases, then JMX monitoring will be enabled and exposed on RMI_PORT (default=18983), without any authentication. If this port is opened for inbound traffic in your firewall, then anyone with network access to your Solr nodes will be able to access JMX, which may in turn allow them to upload malicious code for execution on the Solr server.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12409-RCE%20Vulnerability%20Due%20to%20Bad%20Defalut%2 ExploitThird Party Advisory
https://lists.apache.org/thread.html/47e112035b4aa67ece3b75dbcd1b9c9212895b9dfe2a71f6f7c174e2%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/6640c7e370fce2b74e466a605a46244ccc40666ad9e3064a4e04a85d%40%3Csolr-user.lucene.apac
https://lists.apache.org/thread.html/925cdb49ceae78baddb45da7beb9b4d2b1ddc4a8e318c65e91fb4e87%40%3Cissues.lucene.apache.
https://lists.apache.org/thread.html/a044eae4f6f5b0160ece5bf9cc4c0dad90ce7dd9bb210a9dc50b54be%40%3Cgeneral.lucene.apache
https://lists.apache.org/thread.html/ce7c0b456b15f6c7518adefa54ec948fed6de8e951a2584500c1e541%40%3Cissues.lucene.apache.
https://support.f5.com/csp/article/K23720587?utm_source=f5support&amp%3Butm_medium=RSS
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12409-RCE%20Vulnerability%20Due%20to%20Bad%20Defalut%2 ExploitThird Party Advisory
https://lists.apache.org/thread.html/47e112035b4aa67ece3b75dbcd1b9c9212895b9dfe2a71f6f7c174e2%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/6640c7e370fce2b74e466a605a46244ccc40666ad9e3064a4e04a85d%40%3Csolr-user.lucene.apac
https://lists.apache.org/thread.html/925cdb49ceae78baddb45da7beb9b4d2b1ddc4a8e318c65e91fb4e87%40%3Cissues.lucene.apache.
https://lists.apache.org/thread.html/a044eae4f6f5b0160ece5bf9cc4c0dad90ce7dd9bb210a9dc50b54be%40%3Cgeneral.lucene.apache
https://lists.apache.org/thread.html/ce7c0b456b15f6c7518adefa54ec948fed6de8e951a2584500c1e541%40%3Cissues.lucene.apache.
https://support.f5.com/csp/article/K23720587?utm_source=f5support&amp%3Butm_medium=RSS

Track CVE-2019-12409 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2023-44487HTTP/2 Rapid Reset stream cancellation denial of serviceThe HTTP/2 protocol permits a client to cancel many streams quickly, and the server's handling of those resets consumes disproportionate resources. T…KEVEPSS 100%analysed7.5CVE-2019-17558Apache Solr VelocityResponseWriter template injection enables remote code executionApache Solr 5.0.0 through 8.3.1 renders Velocity templates through VelocityResponseWriter, and attacker-supplied templates can execute code. Paramete…KEVEPSS 99%analysed7.2CVE-2019-0193Apache Solr DataImportHandler dataConfig parameter code injectionApache Solr's DataImportHandler accepts a full DIH configuration through the request's dataConfig parameter, and because a DIH config can contain scr…KEVEPSS 84%analysed9.8CVE-2026-44825Apache solr hard-coded credentials vulnerabilityHardcoded credentials in the Basic Authentication setup tool (bin/solr auth enable) in Apache Solr versions 9.4.0 through 9.10.1 and 10.0.0 allows a …EPSS 2.8%9.8CVE-2024-45216Apache Solr PKIAuthenticationPlugin authentication bypass via fake URL path endingApache Solr instances using the PKIAuthenticationPlugin, enabled by default when Solr Authentication is used, can be bypassed by appending a fake pat…EPSS 92%analysed9.8CVE-2021-44548Apache solr improper input validation vulnerabilityAn Improper Input Validation vulnerability in DataImportHandler of Apache Solr allows an attacker to provide a Windows UNC path resulting in an SMB n…EPSS 5.1%9.8CVE-2021-27905Apache Solr ReplicationHandler masterUrl SSRF flawApache Solr's ReplicationHandler, normally exposed at /replication under a Solr core, accepts a masterUrl (leaderUrl) parameter without validating it…EPSS 93%analysed9.8CVE-2020-13957Apache Solr ConfigSet upload authorization bypass enabling RCEApache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 block dangerous ConfigSet features that could lead to remote code execution wh…EPSS 79%analysed

Source: NIST National Vulnerability Database (record CVE-2019-12409), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.