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CVE-2018-17244

20
FAUCET Score

CVE-2018-17244 is a medium-severity vulnerability affecting Elasticsearch Security versions 6.4.0 to 6.4.2. It involves an error in how request headers are applied during concurrent authentication with Active Directory, LDAP, Native, or File realms, potentially leading to a request executing as an incorrect user when "run as" is utilized. This could allow unauthorized access to sensitive information (CVSS 6.5, CWE-200, CWE-362). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.4.0, <= 6.4.2CPE matchmatch criteria
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.46%
Probability of exploitation in next 30 days
EPSS Percentile
70.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0146 is in the 85th percentile among its peer group of 21,974 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 (1)

mavenpatch availablevia ghsa
Product: org.elasticsearch:elasticsearchFixed in: 6.4.3

Vendor Advisories (2)

mavenGHSA-vpqm-88c4-x4cvmedium

Exposure of Sensitive Information to an Unauthorized Actor in Elasticsearch

May 13, 2022
redhatCVE-2018-17244Moderate

elasticsearch: Information Exposure due to improper set request headers

Nov 6, 2018

References

discuss.elastic.co / t/elastic-stack-6-4-3-and-5-6-13-security-update/155594
Vendor Advisory
elastic.co / community/security
Vendor Advisory
securityfocus.com / bid/106318
Third Party AdvisoryVDB Entry