In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, a user that holds a role with the get_talos_enrichment capability could send a crafted request to the Talos intelligence enrichment Representational State Transfer (REST) API endpoint and cause the instance to make an outbound request to an attacker-controlled server. The request could expose tokens that compromise all relevant data and system integrity in the Splunk instance. The vulnerability is possible because the Talos intelligence enrichment REST endpoint accepts the destination for authenticated Splunk management requests from request data. For more information see Deploy Cisco Talos Intelligence for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/user-guide/8.0/introduction/deploy-cisco-talos-intelligence-for-splunk-enterprise-security-cloud-only) in the Splunk documentation.
CVE-2026-76389
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 8.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(high)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 27%
- KEV
- Not listed
Published
August 19, 2026
Last Modified
August 20, 2026
Advisory Details (1)
Auto-updated Aug 19, 2026SVD-2026-0808 | Splunk Vulnerability Disclosure
https://advisory.splunk.com/advisories/SVD-2026-0808Vendor Advisories for CVE-2026-76389(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 13× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-21 03:33 UTCEG score recompute
- 2026-08-21 03:33 UTCGHSA enrichment
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 14:25 UTCEG score recompute
- 2026-08-20 14:25 UTCGHSA enrichment
- 2026-08-20 13:33 UTCEG score recompute
- 2026-08-20 13:33 UTCGHSA enrichment
- 2026-08-20 13:12 UTCGHSA enrichment
- 2026-08-20 11:28 UTCEG score recompute
- 2026-08-20 11:28 UTCGHSA enrichment
- 2026-08-19 22:20 UTCEG score recompute
- 2026-08-19 21:38 UTCEG score recompute
- 2026-08-19 21:37 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-76389?
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Is CVE-2026-76389 actively exploited?
What is the CVSS score of CVE-2026-76389?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-76389
Is Your Infrastructure Affected by CVE-2026-76389?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.