Elasticsearch Insertion of sensitive information in log file
Priority LOW 25CWE-532Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-532.
Summary
Insertion of sensitive information in log file in Elasticsearch can lead to loss of confidentiality under specific preconditions when auditing requests to the reindex API https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-reindex
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Partial org.elasticsearch.plugin:reindex-client (Maven): 8.18.8, 8.19.5, 9.0.8 +1Red Hat: 5 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Elastic | Elasticsearch | 7.0.0 – 7.17.29; 8.0.0 – 8.18.7; 8.19.0 – 8.19.4; 9.0.0 – 9.0.7; 9.1.0 – 9.1.4 | — | No fix listed | CNA |
| — | org.elasticsearch.plugin:reindex-client (Maven) | 7.0.0 to before 8.18.8 | 8.18.8 | Patch available | GHSA-56r7-h6mw-rcfv |
| — | org.elasticsearch.plugin:reindex-client (Maven) | 8.19.0 to before 8.19.5 | 8.19.5 | Patch available | GHSA-56r7-h6mw-rcfv |
| — | org.elasticsearch.plugin:reindex-client (Maven) | 9.0.0-beta1 to before 9.0.8 | 9.0.8 | Patch available | GHSA-56r7-h6mw-rcfv |
| — | org.elasticsearch.plugin:reindex-client (Maven) | 9.1.0 to before 9.1.5 | 9.1.5 | Patch available | GHSA-56r7-h6mw-rcfv |
- Elasticsearch VendorElastic Affected 7.0.0 – 7.17.29; 8.0.0 – 8.18.7; 8.19.0 – 8.19.4; 9.0.0 – 9.0.7; 9.1.0 – 9.1.4 Fixed in — No fix listed CNA
- org.elasticsearch.plugin:reindex-client (Maven) Vendor— Affected 7.0.0 to before 8.18.8 Fixed in 8.18.8 Patch available GHSA-56r7-h6mw-rcfv
- org.elasticsearch.plugin:reindex-client (Maven) Vendor— Affected 8.19.0 to before 8.19.5 Fixed in 8.19.5 Patch available GHSA-56r7-h6mw-rcfv
- org.elasticsearch.plugin:reindex-client (Maven) Vendor— Affected 9.0.0-beta1 to before 9.0.8 Fixed in 9.0.8 Patch available GHSA-56r7-h6mw-rcfv
- org.elasticsearch.plugin:reindex-client (Maven) Vendor— Affected 9.1.0 to before 9.1.5 Fixed in 9.1.5 Patch available GHSA-56r7-h6mw-rcfv
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:* | 7.0.0 – 7.17.29; 8.0.0 to before 8.18.8; 8.19.0 to before 8.19.5; 9.0.0 to before 9.0.8; 9.1.0 to before 9.1.5 | Vulnerable | Elastic |
- cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:* Versions 7.0.0 – 7.17.29; 8.0.0 to before 8.18.8; 8.19.0 to before 8.19.5; 9.0.0 to before 9.0.8; 9.1.0 to before 9.1.5 Vulnerable ·Elastic
Remediation
- Fix · GHSA-56r7-h6mw-rcfv org.elasticsearch.plugin:reindex-client (Maven) Fixed in 8.18.8 Advisory →
- Fix · GHSA-56r7-h6mw-rcfv org.elasticsearch.plugin:reindex-client (Maven) Fixed in 8.19.5 Advisory →
- Fix · GHSA-56r7-h6mw-rcfv org.elasticsearch.plugin:reindex-client (Maven) Fixed in 9.0.8 Advisory →
- Fix · GHSA-56r7-h6mw-rcfv org.elasticsearch.plugin:reindex-client (Maven) Fixed in 9.1.5 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Logging Subsystem for Red Hat OpenShift | Affected | No fix yet: Fix deferred |
| Red Hat Fuse 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 7 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform 8 | Affected | No fix yet: Fix deferred |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-37727
- 2026-10-03 Alias added: GHSA-56r7-h6mw-rcfv
References
Advisory 2
Other 4
- https://github.com/elastic/elasticsearch/commit/0b876b816544ff5ed07fc9d67cc584b58241e116
- https://github.com/elastic/elasticsearch/commit/e982eef416a5e1c2a4e94236d7d3b33b5c8d07db
- https://github.com/elastic/elasticsearch
- https://www.elastic.co/guide/en/elasticsearch/reference/8.18/release-notes-8.18.8.html
More Elasticsearch vulnerabilities
- TI-2015-01295 The Groovy scripting engine in Elasticsearch before 1.3.8 and 1.4.x before 1.4.3 allows… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-02491 The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which… KEVCVSS 3.1HIGH 8.1
- TI-2023-15037 Elasticsearch StackOverflow vulnerability CVSS 3.1HIGH 7.5
- TI-2021-05135 Information disclosure in Elasticsearch CVSS 3.1MEDIUM 6.5
- TI-2021-05136 All versions of Elastic Cloud Enterprise has the Elasticsearch “anonymous” user enabled… CVSS 3.1HIGH 7.5
- TI-2015-04530 Elasticsearch before 1.6.1 allows remote attackers to execute arbitrary code via… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2025-37727 · CVE Program
- CVE-2025-37727 · NVD
- FIRST EPSS
- GHSA-56r7-h6mw-rcfv · GitHub Advisory Database · CC BY 4.0
- CVE-2025-37727 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences