CVE-2025-37727

Credential disclosure via unredacted reindex audit bodies

Published Oct 10, 2025 · Updated Oct 10, 2025

Sensitive-data exposure in Elastic Elasticsearch affected releases allows remote authenticated users to place reindex credentials in audit logs. RestReindexAction filters an incorrect nested password path and leaves remote header values in audited request bodies instead of redacting them. Affected ranges are 7.0.0 through 7.17.29, 8.0.0 through 8.18.7, 8.19.0 through 8.19.4, 9.0.0 through 9.0.7, and 9.1.0 through 9.1.4; exposure requires audit logging, authentication_success events, and request-body emission, which is disabled by default.

CVSS severity5.7
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-data exposure in Elastic Elasticsearch affected releases allows remote authenticated users to place reindex credentials in audit logs. RestReindexAction filters an incorrect nested password path and leaves remote header values in audited request bodies instead of redacting them. Affected ranges are 7.0.0 through 7.17.29, 8.0.0 through 8.18.7, 8.19.0 through 8.19.4, 9.0.0 through 9.0.7, and 9.1.0 through 9.1.4; exposure requires audit logging, authentication_success events, and request-body emission, which is disabled by default.

The record

CVE
CVE-2025-37727
Published
Oct 10, 2025
Updated
Oct 10, 2025
Vendor
Elastic
Product
Elasticsearch
Classifications
CWE-532, T1552.001
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0.0 <=7.17.29
  2. Affected versionversion=8.0.0 <=8.18.7
  3. Affected versionversion=8.19.0 <=8.19.4
  4. Affected versionversion=9.0.0 <=9.0.7
  5. Affected versionversion=9.1.0 <=9.1.4

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Elastic · Elasticsearchversion=7.0.0 <=7.17.29; version=8.0.0 <=8.18.7; version=8.19.0 <=8.19.4; version=9.0.0 <=9.0.7; version=9.1.0 <=9.1.4

Published CVSS scores

5.7ElasticCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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