CVE-2025-20373 Sensitive Information Disclosure in “_internal“ index through Splunk Add-On for Palo Alto Networks
An attacker with local or admin access can read client secrets exposed in plain text in the internal index of the Splunk Add-on for Palo Alto Networks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-20373?
CVE-2025-20373 is a low-severity vulnerability in Splunk Add-on for Palo Alto Networks, published on 26 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In Splunk Add-on for Palo Alto Networks versions below 2.0.2, the add-on exposes client secrets in plain text in the _internal index during the addition of new “Data Security Accounts“. The vulnerability would require either local access to the log files or administrative access to internal indexes, which by default only the admin role receives. Review roles and capabilities on your instance and restrict internal index access to administrator-level roles. See [Define roles on the Splunk platform with capabilities](https://docs.splunk.com/Documentation/Splunk/latest/Security/Rolesandcapabilities) in the Splunk documentation for more information.
Weakness: CWE-532
Which versions are affected by CVE-2025-20373?
How do I fix CVE-2025-20373?
No fix has been published for CVE-2025-20373 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-20373 being exploited?
There is no known exploitation of CVE-2025-20373 in the wild and no public exploit code.
Sources
Also known as GHSA-hj72-63wj-r3wg.