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CVE-2024-45216

86
FAUCET Score

CVE-2024-45216 describes an improper authentication vulnerability in Apache Solr, specifically affecting instances using the PKIAuthenticationPlugin, which is enabled by default when Solr Authentication is utilized. This flaw allows an attacker to bypass authentication by appending a "fake ending" to any Solr API URL path, enabling unauthorized access to sensitive data and functionality. Rated as Critical with a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction, leading to potential complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or Metasploit/ExploitDB modules, Nuclei templates exist for detection, and the vulnerability has not garnered significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.3.0, < 8.11.4CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
>= 9.0.0, < 9.7.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
90.95%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2024-45216 · Oct 29, 2024
This CVE's current EPSS score of 0.9095 is in the 99th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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:solrFixed in: 8.11.4
mavenpatch availablevia ghsa
Product: org.apache.solr:solrFixed in: 9.7.0

Vendor Advisories (1)

mavenGHSA-mjvf-4h88-6xm3critical

Improper Authentication vulnerability in Apache Solr

Oct 16, 2024

References

openwall.com / lists/oss-security/2024/10/15/8
Mailing List
solr.apache.org / security.html
Vendor Advisory