CVE-2026-49090 json
Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
published 2026-07-01 4 mo ago modified 2026-10-25 14 d ago also BIT-elasticsearch-2026-49090 , EUVD-2026-41100
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk request that causes sustained high CPU consumption, which can render the affected node unable to process requests.
Patch / fix
- bitnami elasticsearch 7.17.24, 8.15.0
- elastic elasticsearch 7.17.24, 8.15.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | elasticsearch | >=7.0.0, <7.17.24 >=8.0.0, <8.15.0 |
7.17.24 8.15.0 |
Affected products
- Elastic Elasticsearch
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
discuss.elastic.co
/t/elasticsearch-7-17-24-8-15-0-security-update-esa-2026-52
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-49090
web
Sources
- CVE List CVE-2026-49090
- NVD CVE-2026-49090
- OSV BIT-elasticsearch-2026-49090
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.