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CVE-2023-50386

82
FAUCET Score

CVE-2023-50386 is a critical Improper Control of Dynamically-Managed Code Resources vulnerability in Apache Solr versions 6.0.0 through 8.11.2 and 9.0.0 before 9.4.1. It allows authenticated attackers to upload malicious Java jar and class files via the ConfigSets API, which could then be executed if a backup is saved to a directory within Solr's ClassPath. This vulnerability has a CVSS score of 8.8 (High) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While not currently on the CISA KEV catalog, a Metasploit module for Remote Code Execution (RCE) exists, indicating a high potential for exploitation, and its EPSS score of 0.84724 suggests a significant likelihood of future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.0.0, < 9.4.1CPE match
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
>= 6.0.0, <= 8.11.2CPE match
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
>= 6.0.0, < 8.11.3CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
83.84%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: Apache Solr Backup/Restore APIs RCE · Feb 24, 2024
This CVE's current EPSS score of 0.8384 is in the 100th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.solr:solr-coreFixed in: 8.11.3
mavenpatch availablevia ghsa
Product: org.apache.solr:solr-coreFixed in: 9.4.1

Vendor Advisories (2)

mavenGHSA-37vr-vmg4-jwpwhigh

Apache Solr: Backup/Restore APIs allow for deployment of executables in malicious ConfigSets

Feb 9, 2024
redhatCVE-2023-50386Important

solr: backup/restore APIs allow for deployment of executables in malicious ConfigSets

Feb 9, 2024

References

solr.apache.org / security.html
Third Party Advisory
openwall.com / lists/oss-security/2024/02/09/1
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