CVE-2025-20231: Splunk Enterprise · Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
Affects Splunk EnterpriseSource CVE Database V5
Not known to be exploited · CVSS 7.1 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Mar 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Splunk Splunk Enterprise | Affected
| Fixed in– |
AI-suggested
1. Immediately upgrade Splunk Enterprise to versions 9.4.1, 9.3.3, 9.2.5, or 9.1.8 or later, and update the Splunk Secure Gateway app to versions 3.8.38 or 3.7.23 or later. 2. Implement strict role-based access controls to minimize the number of users with elevated privileges and restrict search capabilities accordingly. 3. Harden user authentication mechanisms, including enforcing multi-factor authentication (MFA) to reduce the risk of compromised credentials. 4. Conduct targeted phishing awareness training to reduce the likelihood of successful social engineering attacks that trigger the vulnerability. 5. Monitor Splunk logs and audit trails for unusual search activity or privilege escalations indicative of exploitation attempts. 6. Limit browser-based session persistence and consider implementing browser security controls to prevent unauthorized request initiation. 7. Review and sanitize log data to avoid logging sensitive information unnecessarily, reducing exposure if logs are accessed. 8. Employ network segmentation and monitoring to detect and contain potential lateral movement following exploitation. 9. Stay informed on vendor advisories and threat intelligence for any emerging exploits or patches related to this vulnerability.
Description
In Splunk Enterprise versions below 9.4.1, 9.3.3, 9.2.5, and 9.1.8, and versions below 3.8.38 and 3.7.23 of the Splunk Secure Gateway app on Splunk Cloud Platform, a low-privileged user that does not hold the “admin“ or “power“ Splunk roles could run a search using the permissions of a higher-privileged user that could lead to disclosure of sensitive information.<br><br>The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The authenticated low-privileged user should not be able to exploit the vulnerability at will.