# CVE-2026-76367: Splunk SOAR stored cross-site scripting in notes

Source: https://junglewise.ai/threats/cve-2026-76367-splunk-soar-stored-cross-site-scripting-in-notes  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-19. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-76367 · Severity: medium · CVSS 4 · Published 2026-08-19

Splunk SOAR is a security orchestration platform used to automate incident response workflows. A user with the "Incident Commander" role can inject malicious JavaScript into note fields that executes in other users' browsers when they view the note, potentially allowing account takeover or unauthorized actions. The attack requires social engineering to trick a victim into opening a specially crafted note.

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

## Quick answers

**Is CVE-2026-76367 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-76367 being exploited in the wild.

**How severe is CVE-2026-76367?** Medium severity, with a CVSS score of 4, published 19 August 2026.

**Which products and versions are affected?** Splunk SOAR Below 8.6.0.

**Is there a fix for CVE-2026-76367?** A patch was published on 2026-08-19: Fix available in version 8.6.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-76367 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-76367?** 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.

## Technical details

This is a stored cross-site scripting (XSS) vulnerability (CWE-79) in Splunk SOAR's note handling functionality. The vulnerability occurs when the format of a note is changed; SOAR treats existing note content as HTML without sanitizing it, allowing an attacker with the "Incident Commander" role to store malicious JavaScript that executes in a victim's browser. The attack vector is network-based and requires the attacker to trick a user into opening the malicious note (phishing). An attacker can achieve session hijacking, credential theft, or unauthorized actions within the victim's session. The vulnerability affects versions below 8.6.0 and is resolved by upgrading to version 8.6.0 or later.

## Affected products

- Splunk SOAR Below 8.6.0

## Timeline

- 2026-08-19: disclosed
- 2026-08-19: patched: Fix available in version 8.6.0

## References

- [https://advisory.splunk.com/advisories/SVD-2026-0804](https://advisory.splunk.com/advisories/SVD-2026-0804)

## 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)