CVE-2026-72649 json
Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution
published 2026-09-01 2 mo ago modified 2026-09-08 2 mo ago also BIT-elasticsearch-2026-72649 , EUVD-2026-69562
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
Deserialization of Untrusted Data (CWE-502) in the Elasticsearch machine learning component can lead to remote code execution via Object Injection (CAPEC-586). A specially crafted trained model artifact could cause attacker-controlled logic to execute with a materially broader system-call surface than intended. Exploitation requires an authenticated user with sufficient privileges to create and deploy trained models.
Patch / fix
- bitnami elasticsearch 8.19.20, 9.4.5, 9.5.1
- elastic elasticsearch 8.19.20, 9.4.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | elasticsearch | >=8.0.0, <8.19.20 >=9.0.0, <9.4.5 >=9.5.0, <9.5.1 |
8.19.20 9.4.5 9.5.1 |
Affected products
- Elastic Elasticsearch
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
Sources
- CVE List CVE-2026-72649
- NVD CVE-2026-72649
- OSV BIT-elasticsearch-2026-72649
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