CVE-2026-76311

CRITICAL
INFO Priority: 0.04 BB Relevance: 79/100
Published: 2026-08-19 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: Low

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
splunk splunk 9.4.0 – 9.4.14
splunk splunk 10.0.0 – 10.0.9
splunk splunk 10.2.0 – 10.2.6
splunk splunk 10.4.0 – 10.4.2

References & Advisories (1)

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

EPSS — Exploitation Probability

0.45%
Raw Score 0.004460
Percentile 38.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00446
2026-10-28
0.00446

Intelligence Sources

nvd ref →