CVE-2026-76311
Improper Access Control in Embedded Report Dispatch Archives in Splunk Enterprise
Description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user who has an embedded report token could download the dispatch archive for an embedded report search job and use exposed session material to access all relevant data and affect system integrity on the Splunk platform instance. The vulnerability is possible because the embedded report authorization flow does not block dispatch archive download requests before Splunk Enterprise begins sending the archive to the requester. For more information see Additional configuration for embedded reports (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/additional-configuration-for-embedded-reports) and Embed scheduled reports (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/embed-scheduled-reports) in the Splunk documentation.
INFO
Published Date :
Aug. 19, 2026, 10:17 p.m.
Last Modified :
Oct. 24, 2026, 1:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | d1c1063e-7a18-46af-9102-31f8928bc633 | ||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE |
Solution
- Update Splunk Enterprise to version 10.4.2 or later.
- Update Splunk Enterprise to version 10.2.6 or later.
- Update Splunk Enterprise to version 10.0.9 or later.
- Update Splunk Enterprise to version 9.4.14 or later.
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-2026-76311.
| URL | Resource |
|---|---|
| https://advisory.splunk.com/advisories/SVD-2026-0801 | Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-76311 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-2026-76311
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-2026-76311 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-76311 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.
-
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Changed Translation Title: Splunk Enterprise de Splunk, Description: En versiones de Splunk Enterprise anteriores a 10.4.2, 10.2.6, 10.0.9 y 9.4.14, un usuario no autenticado que tiene un token de informe incrustado podría descargar el archivo de despacho para un trabajo de búsqueda de informe incrustado y usar material de sesión expuesto para acceder a todos los datos relevantes y afectar la integridad del sistema en la instancia de la plataforma Splunk. La vulnerabilidad es posible porque el flujo de autorización de informes incrustados no bloquea las solicitudes de descarga del archivo de despacho antes de que Splunk Enterprise comience a enviar el archivo al solicitante. Para más información, consulte Configuración adicional para informes incrustados (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/additional-configuration-for-embedded-reports) e Incrustar informes programados (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/embed-scheduled-reports) en la documentación de Splunk. Title: Splunk Enterprise de Splunk, Description: En versiones de Splunk Enterprise anteriores a 10.4.2, 10.2.6, 10.0.9 y 9.4.14, un usuario no autenticado que tiene un token de informe incrustado podría descargar el archivo de despacho para un trabajo de búsqueda de informe incrustado y usar material de sesión expuesto para acceder a todos los datos relevantes y afectar la integridad del sistema en la instancia de la plataforma Splunk. La vulnerabilidad es posible porque el flujo de autorización de informes incrustados no bloquea las solicitudes de descarga del archivo de despacho antes de que Splunk Enterprise comience a enviar el archivo al solicitante. Para más información, consulte Configuración adicional para informes incrustados (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/additional-configuration-for-embedded-reports) e Incrustar informes programados (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/embed-scheduled-reports) en la documentación de Splunk. -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: Splunk Enterprise de Splunk, Description: En versiones de Splunk Enterprise anteriores a 10.4.2, 10.2.6, 10.0.9 y 9.4.14, un usuario no autenticado que tiene un token de informe incrustado podría descargar el archivo de despacho para un trabajo de búsqueda de informe incrustado y usar material de sesión expuesto para acceder a todos los datos relevantes y afectar la integridad del sistema en la instancia de la plataforma Splunk. La vulnerabilidad es posible porque el flujo de autorización de informes incrustados no bloquea las solicitudes de descarga del archivo de despacho antes de que Splunk Enterprise comience a enviar el archivo al solicitante. Para más información, consulte Configuración adicional para informes incrustados (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/additional-configuration-for-embedded-reports) e Incrustar informes programados (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/embed-scheduled-reports) en la documentación de Splunk. -
CVE Modified by [email protected]
Aug. 27, 2026
Action Type Old Value New Value Added Reference https://advisory.splunk.com/advisories/SVD-2026-0801 Removed Reference https://advisory.splunk.com/advisories/SVD-2026-0801 Removed Reference Type https://advisory.splunk.com/advisories/SVD-2026-0801 Types: Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 27, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-76311', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-20T00:00:00+00:00'} {'id': 'CVE-2026-76311', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-21T03:57:02.105051Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 21, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-76311', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-20T00:00:00+00:00'} -
Initial Analysis by [email protected]
Aug. 20, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* versions from (including) 10.0.0 up to (excluding) 10.0.9 *cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* versions from (including) 10.2.0 up to (excluding) 10.2.6 *cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* versions from (including) 10.4.0 up to (excluding) 10.4.2 *cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* versions from (including) 9.4.0 up to (excluding) 9.4.14 Added Reference Type Cisco Systems, Inc.: https://advisory.splunk.com/advisories/SVD-2026-0801 Types: Mitigation, Vendor Advisory -
New CVE Received by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Splunk', 'product': 'Splunk Enterprise', 'versions': [{'status': 'affected', 'version': '10.4', 'lessThan': '10.4.2', 'versionType': 'custom'}, {'status': 'affected', 'version': '10.2', 'lessThan': '10.2.6', 'versionType': 'custom'}, {'status': 'affected', 'version': '10.0', 'lessThan': '10.0.9', 'versionType': 'custom'}, {'status': 'affected', 'version': '9.4', 'lessThan': '9.4.14', 'versionType': 'custom'}]}] Added Description In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user who has an embedded report token could download the dispatch archive for an embedded report search job and use exposed session material to access all relevant data and affect system integrity on the Splunk platform instance. The vulnerability is possible because the embedded report authorization flow does not block dispatch archive download requests before Splunk Enterprise begins sending the archive to the requester. For more information see Additional configuration for embedded reports (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/additional-configuration-for-embedded-reports) and Embed scheduled reports (https://help.splunk.com/en/splunk-enterprise/create-dashboards-and-reports/reporting-manual/10.4/report-management/embed-scheduled-reports) in the Splunk documentation. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L Added CWE CWE-284 Added Reference https://advisory.splunk.com/advisories/SVD-2026-0801