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CVE-2026-56148

32
FAUCET Score

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted query that causes excessive resource consumption while the request is processed, which may render the affected node unavailable.

First published: Jul 1, 2026Last modified: Jul 1, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.0.0, < 8.19.17CPE matchmatch criteria
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
>= 9.0.0, < 9.3.6CPE matchmatch criteria
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
>= 9.4.0, < 9.4.3CPE matchmatch criteria
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.19.16CPE match
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
>= 9.0.0, <= 9.3.5CPE match
cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 36th 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

Remediation records are not available for this CVE.

References

discuss.elastic.co / t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42
Vendor Advisory