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CVE-2023-31418

23
FAUCET Score

CVE-2023-31418 is a denial-of-service vulnerability affecting Elasticsearch and Elastic Cloud Enterprise. An unauthenticated attacker can trigger an OutOfMemory error by sending malformed HTTP requests, leading to a high-severity impact on availability. While no active exploitation or public exploit code is known, the vulnerability has a CVSS score of 7.5, indicating a significant risk. Community discussion and media coverage are currently minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.17.12CPE matchmatch criteria
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.8.2CPE matchmatch criteria
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
<= 2.13.3CPE matchmatch criteria
cpe:2.3:a:elastic:elastic_cloud_enterprise:*:*:*:*:*:*:*:*
3.6.0CPE matchmatch criteria
cpe:2.3:a:elastic:elastic_cloud_enterprise:3.6.0:*:*:*:*:*:*:*
>= 2.13.3, < 3.6.0CPE match
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.23%
Probability of exploitation in next 30 days
EPSS Percentile
65.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0123 is in the 45th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (3)

mavenpatch availablevia ghsa
Product: org.elasticsearch:elasticsearchFixed in: 7.17.13
mavenpatch availablevia ghsa
Product: org.elasticsearch:elasticsearchFixed in: 8.9.0
redhatno patchvia redhat_api
Product: Red Hat Quay 3Fixed in: quay/quay-rhel8

Vendor Advisories (2)

mavenGHSA-2cqf-6xv9-f22whigh

Elasticsearch vulnerable to Uncontrolled Resource Consumption

Oct 26, 2023
redhatCVE-2023-31418Important

elasticsearch: uncontrolled resource consumption

Oct 26, 2023

References

discuss.elastic.co / t/elasticsearch-8-9-0-7-17-13-security-update/343616
Vendor Advisory
security.netapp.com / advisory/ntap-20231130-0005
elastic.co / community/security
Vendor Advisory