CVE-2026-76351
highpriority · track · 0EPSS 0.004 · 35 %ileDENLUSEPSS · scored 2026-10-22
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could use crafted report notification data to cause Splunk Secure Gateway to send a request to the Splunk Enterprise Representational State Transfer (REST) API using a system-level session token and modify the Splunk platform configuration. The user could then obtain a session token without a password and use it to access all relevant data and affect system integrity. The vulnerability is possible because Splunk Secure Gateway does not validate decoded report notification identifiers before using them to construct requests to the Splunk Enterprise REST API.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (18)
Products and version ranges known to be affected.
- splunk splunk secure gateway3.10.0 → 3.10.9nvdUScpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:*
- splunk splunk secure gateway3.8.0 → 3.8.70nvdUScpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:*
- splunk splunk secure gateway3.9.0 → 3.9.23nvdUScpe:2.3:a:splunk:splunk_secure_gateway:*:*:*:*:*:*:*:*
advisories (2)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0322Kwetsbaarheden verholpen in Splunk Enterprise door SplunkNL2026-08-21csaf · ncsc_nlNL
Splunk heeft meerdere kwetsbaarheden verholpen in Splunk Enterprise, specifiek in versies vóór 10.4.2, 10.2.6, 10.0.9 en 9.4.14.
- WID-SEC-W-2026-2929Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-08-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, SQL-Injection-, serverseitige Request-Forgery- und Cross-Site-Scripting-Angriffe durchzuführen, sensible Informationen offenzulegen oder zu manipulieren, Denial-of-Service-Zustände auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.
sources
Which sources assert this record, and when.
references (1) nvd
External citations — patches, advisories, analysis.
- https://advisory.splunk.com/advisories/SVD-2026-0801Vendor Advisory
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