# CVE-2026-76307: Splunk SOAR authentication token disclosure in REST API

Source: https://junglewise.ai/threats/cve-2026-76307-in-splunk-soar-versions-below-8-7-0-a-user-that-holds-a-role-with  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-21. Updated: 2026-10-21  
License: CC BY 4.0 with a link back

CVE-2026-76307 · Severity: high · CVSS 7.2 · Published 2026-10-21

Splunk SOAR is a security orchestration platform used to automate incident response and threat management. In versions below 8.7.0, an authenticated user with Users and Roles viewing permissions can exploit the REST API to guess other users' authentication tokens. If an attacker obtains an admin token through this method, they can gain full administrative control of the SOAR instance, potentially compromising all security operations and sensitive data.

Technologies: [Splunk SOAR](https://junglewise.ai/threats/technologies/soar). Vendors: [Splunk](https://junglewise.ai/threats/vendors/splunk).

## Quick answers

**Is CVE-2026-76307 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76307 being exploited in the wild.

**How severe is CVE-2026-76307?** High severity, with a CVSS score of 7.2, published 21 October 2026.

**Which products and versions are affected?** Splunk SOAR below 8.7.0.

**Is there a fix for CVE-2026-76307?** Yes: fixed in 8.7.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-76307 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-76307?** Check whether you run Splunk SOAR at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 8.7.0

## Technical details

The vulnerability exists in the REST API query filter functionality, which applies user-supplied filters before protecting sensitive user record fields. A user with Users and Roles view permission can enumerate and infer authentication token values for other users by crafting specific queries. If the inferred token belongs to an administrative account, the attacker achieves privilege escalation to administrative access. This is an information disclosure vulnerability leading to potential privilege escalation.

## Affected products

- Splunk SOAR below 8.7.0

## Timeline

- 2026-10-21: disclosed

## References

- [https://advisory.splunk.com/advisories/SVD-2026-1010](https://advisory.splunk.com/advisories/SVD-2026-1010)

## Related threats

- [Splunk SOAR files or directories accessible to external parties](https://junglewise.ai/threats/cve-2026-76531-as-part-of-cisco-s-ongoing-commitment-to-proactive-security-and)
- [Splunk SOAR authorization bypass via non-canonical URL paths](https://junglewise.ai/threats/cve-2026-76530-as-part-of-cisco-s-ongoing-commitment-to-proactive-security-and)
- [Splunk SOAR improper protection of alternate path](https://junglewise.ai/threats/cve-2026-76529-as-part-of-cisco-s-ongoing-commitment-to-proactive-security-and)
- [Splunk SOAR protection mechanism failure](https://junglewise.ai/threats/cve-2026-76528-as-part-of-cisco-s-ongoing-commitment-to-proactive-security-and)
- [Splunk SOAR improper handling of exceptional conditions](https://junglewise.ai/threats/cve-2026-76527-as-part-of-cisco-s-ongoing-commitment-to-proactive-security-and)