CVE-2026-94398: elastic elasticsearch Uncontrolled Resource Consumption
CVSS: 6.5v3.1MediumAnalyzed
AliasesCGA-7585-f6m7-68hqCGA-7p79-972x-whxxCGA-835c-8w6x-wgpvCGA-mg25-xpw6-vq3mCGA-p4rh-rvh4-26hxCGA-vg35-fv37-wj8gCGA-vh8m-fjrq-v82gCGA-vw25-cxqq-wh8fCGA-6j6j-9rxh-v44fCGA-fx8q-xqgh-4p5cCGA-qcph-rccx-p9p2CGA-vqpq-j2vj-fxpm
Published 26-09-2026Last modified 26-09-2026
Vulnerability summary
CVE-2026-94398 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in elastic elasticsearch. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.1% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.42%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 26-09-2026PublishedVulnerability first disclosed.
- 26-09-2026Last modifiedVulnerability information updated.
Description
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · WolfiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
27-09-202621-10-2026
EPSS score0.42%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard6 products
- elasticsearch-9.2All versions (No fix recorded)
- elasticsearch-9.3All versions (No fix recorded)
- ruby3.2-elasticsearchAll versions (No fix recorded)
- ruby3.3-elasticsearchAll versions (No fix recorded)
- ruby3.4-elasticsearchAll versions (No fix recorded)
Wolfi4 products
- ruby3.2-elasticsearchAll versions (No fix recorded)
- ruby3.3-elasticsearchAll versions (No fix recorded)
- ruby3.4-elasticsearchAll versions (No fix recorded)
- ruby4.0-elasticsearchAll versions (No fix recorded)
Elastic1 product
- elasticsearch≥ 8.12.0, ≤ 8.19.21 | ≥ 9.0.0, ≤ 9.4.6 | ≥ 9.5.0, ≤ 9.5.3 | ≥ 8.12.0, < 8.19.22 | ≥ 9.0.0, < 9.4.7 | ≥ 9.5.0, < 9.5.4
3 vendors · 11 products
