CVE-2026-78607 json
Missing Authorization in Elasticsearch Leading to Information Disclosure
published 2026-09-01 2 mo ago modified 2026-09-08 2 mo ago also BIT-elasticsearch-2026-78607 , EUVD-2026-69570
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
Missing Authorization (CWE-862) in the Elasticsearch custom inference service can lead to information disclosure via Privilege Abuse (CAPEC-122). A user holding only inference execution privileges could cause outbound inference traffic to be directed to a destination of their choosing and could cause administrator-provisioned credentials to be exposed.
Patch / fix
- bitnami elasticsearch 8.19.19, 9.3.8, 9.4.4, 9.5.1
- elastic elasticsearch 8.19.19, 9.3.8, 9.4.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| OSV | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | elasticsearch | >=8.0.0, <8.19.19 >=9.0.0, <9.3.8 >=9.4.0, <9.4.4 >=9.5.0, <9.5.1 |
8.19.19 9.3.8 9.4.4 9.5.1 |
Affected products
- Elastic Elasticsearch
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
Sources
- CVE List CVE-2026-78607
- NVD CVE-2026-78607
- OSV BIT-elasticsearch-2026-78607
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