An issue that allowed administrators to create and update users outside of their authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N (5.8 Medium). This issue was fixed in version 4.0.260203.0 of the runZero Platform.
CVE-2026-5378
Score 5.8 from GitHub Security Advisory published 2026-04-07. NVD baseline CVSS 5.8; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.8
- EG Score
- 5.8(medium)
- EG Risk
- 26(Track)EG Risk 26/100SSVC: 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 computedSeverity58% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 9%
- KEV
- Not listed
Published
April 7, 2026
Last Modified
April 21, 2026
References (2)
- 44488dab-36db-4358-99f9-bc116477f914https://help.runzero.com/docs/release-notes/#402602030
- 44488dab-36db-4358-99f9-bc116477f914https://www.runzero.com/advisories/runzero-platform-user-creation-leak-cve-2026-5378/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 47× 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.
Showing the most recent 100 of 107 total refreshes for this CVE.
- 2026-07-27 14:14 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2026-5378?
When was CVE-2026-5378 disclosed?
Is CVE-2026-5378 actively exploited?
What is the CVSS score of CVE-2026-5378?
How do I remediate CVE-2026-5378?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-5378
Is Your Infrastructure Affected by CVE-2026-5378?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.