Vulnerability · CVE-2025-37727
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://w
Published Oct 10, 2025 · catalog updated Oct 10, 2025 · Elastic Elasticsearch
Last checked Oct 23, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-37727. EPSS is 0.25%. Act only if a listed version of Elastic Elasticsearch is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2015-5531 · Unknown · known exploited
- CVE-2024-52979 · Medium
- CVE-2015-1427 · Critical · known exploited
- CVE-2014-3120 · High · known exploited
- Severity
- Medium5.7
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.25%
- Remediation
- Advisory link
- Affected products
- vendor Elastic Elasticsearch 8.19.0 ≤8.19.4
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
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Elastic Elasticsearch 8.19.0 ≤8.19.48.19.0 ≤8.19.4
How to fix CVE-2025-37727
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 8.19.0 ≤8.19.4
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-37727. EPSS is 0.25%. Act only if a listed version of Elastic Elasticsearch is installed.
Which versions are affected?
Compare what you have installed with Elastic Elasticsearch 8.19.0 ≤8.19.4 8.19.0 ≤8.19.4. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.25%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 10, 2025 · EUVD
Detected
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
Oct 10, 2025 · EUVD
Updated
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
Sources
- CVE.orgVulnerability recordCVE-2025-37727
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-37727
30-day exploitation probability 0.25%
first.org - EUVDVulnerability recordEUVD-2025-33703
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
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 23, 2026
- CVE.orgOct 23, 2026
- EUVDOct 23, 2026