CVE-2026-20252
Last modified
CVE-2026-20252 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. 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.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk | >= 9.3.0, < 9.3.13 |
| Splunk | Splunk | >= 9.4.0, < 9.4.12 |
| Splunk | Splunk | >= 10.0.0, < 10.0.7 |
| Splunk | Splunk | >= 10.2.0, < 10.2.4 |
| Splunk | Splunk Cloud Platform | >= 9.3.2411, < 9.3.2411.132 |
| Splunk | Splunk Cloud Platform | >= 10.1.2507, < 10.1.2507.22 |
| Splunk | Splunk Cloud Platform | >= 10.2.2510, < 10.2.2510.14 |
| Splunk | Splunk Cloud Platform | >= 10.3.2512, < 10.3.2512.12 |
| Splunk | Splunk Cloud Platform | >= 10.4.2604, < 10.4.2604.3 |
References
- https://advisory.splunk.com/advisories/SVD-2026-0602Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-20252?
How severe is CVE-2026-20252?
How do I fix CVE-2026-20252?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-20247A vulnerability in Cisco ISE could allow an unauthenticated,…7.5
- CVE-2026-20248A vulnerability in the DNS over TCP implementation of Cisco …6.8
- CVE-2026-20249A vulnerability in the certification authentication feature …8.6
- CVE-2026-2025The Mail Mint WordPress plugin before 1.19.5 does not have …7.5
- CVE-2026-20250A vulnerability in Datagram TLS (DTLS) message handling of C…8.6
- CVE-2026-20251In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, …8.8
- CVE-2026-20253In Splunk Enterprise 10.2 versions below 10.2.4 and 10 versi…9.8
- CVE-2026-20254In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, …5.7
- CVE-2026-20255In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, …5.7
- CVE-2026-20256In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, …5.7
- CVE-2026-20257In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, …5.7
- CVE-2026-20258In Splunk Enterprise versions below 10.2.4, 10.0.7, 9.4.12, …5.4
Are you affected by CVE-2026-20252?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST