CVE-2026-20252
highpriority · track · 0EPSS 0.003 · 28 %ileDEEUNLUSEPSS · scored 2026-10-27
In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, and 9.3.13, and Splunk Cloud Platform versions below 10.4.2604.3, 10.3.2512.12, 10.2.2510.14, 10.1.2507.22, and 9.3.2411.132, a low-privileged user that does not hold the "admin" or "power" Splunk roles could send server-side requests to arbitrary internal destinations through the Dashboard Studio PDF export feature. The vulnerability exists because the trusted-domain validation uses a prefix match that can be bypassed with attacker-controlled subdomains (for example, docs.splunk.com.evil.com), and because the PDF export service follows HTTP redirects automatically without re-validating each redirect target against the allowlist.
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
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affected products (32)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0198Kwetsbaarheden verholpen in Splunk Enterprise en Splunk Cloud PlatformNL2026-06-15csaf · ncsc_nlNL
Splunk heeft meerdere kwetsbaarheden verholpen in Splunk Enterprise en Splunk Cloud Platform.
- WID-SEC-W-2026-1877Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-06-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.
also known as (3)
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sources
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references (3)
External citations — patches, advisories, analysis.
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