CVE-2026-49088
Insertion of Sensitive Information into Log File in Kibana Leading to Information Disclosure
Description
Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information disclosure. When the optional application performance monitoring (APM) instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to operators with log access.
INFO
Published Date :
July 1, 2026, 5:16 p.m.
Last Modified :
July 2, 2026, 5:52 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 271b6943-45a9-4f3a-ab4e-976f3fa05b5a | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Disable optional APM instrumentation if not required.
- Configure logging to exclude sensitive header values.
- Restrict access to application log files.
- Review and sanitize existing log data.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-49088.
| URL | Resource |
|---|---|
| https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50 | Vendor Advisory Mitigation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-49088 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-49088
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-49088 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-49088 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 02, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (excluding) 9.0.8 *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 9.1.0 up to (excluding) 9.1.6 *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.18.9 *cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:* versions from (including) 8.19.0 up to (excluding) 8.19.6 Added Reference Type Elastic: https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50 Types: Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 01, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-49088', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-01T17:19:40.665767Z'} -
New CVE Received by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Elastic', 'product': 'Kibana', 'versions': [{'status': 'affected', 'version': '8.0.0', 'versionType': 'semver', 'lessThanOrEqual': '8.18.8'}, {'status': 'affected', 'version': '9.1.0', 'versionType': 'semver', 'lessThanOrEqual': '9.1.5'}, {'status': 'affected', 'version': '9.0.0', 'versionType': 'semver', 'lessThanOrEqual': '9.0.7'}, {'status': 'affected', 'version': '8.19.0', 'versionType': 'semver', 'lessThanOrEqual': '8.19.5'}], 'defaultStatus': 'unaffected'}] Added Description Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information disclosure. When the optional application performance monitoring (APM) instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to operators with log access. Added CVSS V3.1 AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-532 Added Reference https://discuss.elastic.co/t/kibana-8-18-9-8-19-6-9-0-8-9-1-6-security-update-esa-2026-50