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CVE-2018-11802

19
FAUCET Score

CVE-2018-11802 describes an authorization bypass vulnerability in Apache Solr versions prior to 7.7, specifically impacting instances using the default RuleBasedAuthorizationPlugin. When a Solr node proxies a request for a collection it doesn't host to another node, it fails to enforce authorization settings, allowing unauthorized access to data. This vulnerability has a CVSS score of 4.3 (Medium), indicating a low-complexity attack requiring low privileges to achieve low confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.2.0, < 6.6.6CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.7.0CPE matchmatch criteria
cpe:2.3:a:apache:solr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.02%
Probability of exploitation in next 30 days
EPSS Percentile
78.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0202 is in the 91st percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (4)

mavenpatch availablevia ghsa
Product: org.apache.solr:solr-parentFixed in: 7.7.0
mavenpatch availablevia ghsa
Product: org.apache.solr:solr-parentFixed in: 6.6.6
mavenpatch availablevia ghsa
Product: org.apache.solr:solr-coreFixed in: 7.7.0
mavenpatch availablevia ghsa
Product: org.apache.solr:solr-coreFixed in: 6.6.6

Vendor Advisories (2)

mavenGHSA-j346-h5wc-rw2mmedium

Incorrect Authorization in Apache Solr

Feb 9, 2022
redhatCVE-2018-11802Low

solr: Information disclosure via Rule-base Authorization plugin

Apr 24, 2019

References

openwall.com / lists/oss-security/2019/04/24/1
Mailing ListThird Party Advisory