Protection mechanism failure in Splunk SOAR
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-693.
Summary
Splunk SOAR from 0 before 8.7.0 contains a protection mechanism failure, tracked as CWE-693. The flaw was found in an internal Cisco security review. An unauthenticated remote attacker can affect the confidentiality, integrity and availability of the system, with a CVSS 3.1 base score of 9.8.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76528 are related to protection mechanism failure and are grouped under the Common Weakness Enumeration (CWE) CWE-693.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update Splunk SOAR to version 8.7.0, which fixes this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA Splunk SOAR (Splunk) Fixed in 8.7.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Splunk SOAR 8.7.0
15 records Highest priority Priority MEDIUM 8 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2026-79051 Improper protection of alternate path in Splunk SOARPriority MEDIUM 49
- TI-2026-79049 Improper exception handling in Splunk SOARPriority MEDIUM 49
- TI-2026-79047 Improper resource lifetime control in Splunk SOARPriority MEDIUM 49
Timeline
- 2026-10-21 Threatist record created from CVE-2026-76528
- 2026-10-22 Alias added: GHSA-fq28-h6jp-7ffm
- 2026-11-02 CVSS score added · CISA ADP
- 2026-11-02 CISA SSVC decision points changed
- 2026-11-02 Priority changed: LOW → MEDIUM
References
More Splunk vulnerabilities
- TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
- TI-2023-12257 Injection in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
- TI-2022-13930 Information disclosure in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
- TI-2022-13917 Incorrect default permissions in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-76528 · CVE Program
- CVE-2026-76528 · NVD
- FIRST EPSS
- GHSA-fq28-h6jp-7ffm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences