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CVE-2026-5378

runZero Platform user creation leak

Description

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.

Timeline

  1. ID reserved

    By runZero

  2. · 6 days later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-5378, by who scored it
Scored byCVSSScoreVector
runZeroCNA (assigner)3.1Medium5.8CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N
NVDNVD · Analyzed3.1Medium6.8CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
EPSS (exploitation in 30 days)
0.19% · top 91% of all CVEs (11 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.

Affected products

What to do

Solution: This issue was fixed in version 4.0.260203.0 of the runZero Platform

References

2

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .