Cyber Resilience

CVE-2025-20322

CSRF in Splunk 9.1.0 – 9.1.10

Published
07 July 2025
Modified
17 June 2026
Patch / advisory
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS Score 0.0019 8th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-20322 is a medium-severity CSRF (CWE-352) vulnerability in Splunk Splunk. Its CVSS base score is 4.3 (Medium).

Operationally, ranked at the 8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and CM-5 (Access Restrictions for Change) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and 9.1.10, and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, an unauthenticated attacker could send a specially-crafted SPL search command that could trigger a rolling restart in the Search Head…

more

Cluster through a Cross-Site Request Forgery (CSRF), potentially leading to a denial of service (DoS).<br><br>The vulnerability requires the attacker to phish the administrator-level victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit the vulnerability at will.<br><br>See [How rolling restart works](https://docs.splunk.com/Documentation/Splunk/9.4.2/DistSearch/RestartSHC) for more information.

CWE(s)

Related Threats

CVEs Like This One

CVE-2025-20321Same product: Splunk Splunk
CVE-2025-20228Same product: Splunk Splunk
CVE-2024-45737Same product: Splunk Splunk
CVE-2023-22942Same product: Splunk Splunk
CVE-2025-28900Shared CWE-352
CVE-2024-25932Shared CWE-352
CVE-2024-34809Shared CWE-352
CVE-2025-2935Shared CWE-352
CVE-2024-54205Shared CWE-352
CVE-2025-23898Shared CWE-352

Affected Assets

splunk
splunk
9.1.0 — 9.1.10 · 9.2.0 — 9.2.7 · 9.3.0 — 9.3.5
splunk
splunk cloud platform
9.2.2406 — 9.2.2406.119 · 9.3.2408 — 9.3.2408.113 · 9.3.2411 — 9.3.2411.104

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • CM-5 Access Restrictions for Change
  • SI-10 Information Input Validation
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V3.3.2
  • V3.5.1
  • V10.2.1

Mitigating Controls (NIST 800-53 r5) AI

prevent

Enforces that privileged actions such as triggering a Search Head Cluster rolling restart can only be performed via properly authenticated and non-forged requests, directly blocking the CSRF vector.

prevent

Restricts the ability to perform configuration changes (including rolling restarts) to authorized sessions only, preventing an attacker-phished admin request from succeeding.

prevent

Requires validation of incoming SPL commands and request context (e.g., origin or anti-CSRF tokens) so that specially-crafted forged requests are rejected before execution.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require anti-CSRF controls such as tokens or SameSite attributes.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

mitigates

By denying access to phishing or malicious sites, the control lowers the likelihood that a user will be tricked into submitting a forged request that performs an unintended action on another site.

none

Contextual intelligence about emerging CSRF toolkits can be translated into updated anti-CSRF token or same-site policy configurations across applications.

References