CVE-2026-56148 json
Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
published 2026-07-01 4 mo ago modified 2026-10-25 14 d ago also BIT-elasticsearch-2026-56148 , EUVD-2026-41065
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- bitnami elasticsearch 8.19.17, 9.3.6, 9.4.3
- elastic elasticsearch 8.19.17, 9.3.6, 9.4.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 41% 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 | >=8.0.0, <8.19.17 >=9.0.0, <9.3.6 >=9.4.0, <9.4.3 |
8.19.17 9.3.6 9.4.3 |
Affected products
- Elastic Elasticsearch
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
-
discuss.elastic.co
/t/elasticsearch-8-19-17-9-3-6-9-4-3-security-update-esa-2026-42
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-56148
web
Sources
- CVE List CVE-2026-56148
- NVD CVE-2026-56148
- OSV BIT-elasticsearch-2026-56148
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