How to Fix CVE-2026-5781: Minerva (Bundle Sibling)
By Sai Kiran Pandrala
Last verified: 2026-05-25
CVE-2026-5781 is a sibling vulnerability in the same vendor advisory as CVE-2026-5779. Applying the patched build named in the primary write-up closes this CVE as well.
| Severity | CVSS 8.5 - High |
|---|---|
| Actively exploited? | Not currently in CISA KEV |
| Affected | Same as the bundle - see CVE-2026-5779 |
| Fixed in | Same patched build as CVE-2026-5779 (See vendor advisory) |
| Type (CWE) | CWE-285: CWE-285 Improper Authorization |
What's different about CVE-2026-5781?
An authorization vulnerability in MphRx's Minerva V3.6.0, specifically in the '/minerva/moUser/update' endpoint, could allow an authenticated user with user modification privileges to escalate their privileges by sending an HTTP request with a manipulated 'identifier' field. Successful exploitation of this vulnerability could allow an authenticated user to obtain administrator privileges. It is not possible to escalate privileges through the graphical user interface.
The technical impact and remediation are identical to the primary CVE in the bundle. The same vendor patch closes both.
How to fix CVE-2026-5781
Apply the patched build per the primary write-up: How to Fix CVE-2026-5779.
The patch installation procedure, verification commands, and interim mitigations are documented there. Reusing one runbook keeps the rollout consistent across the bundle.
Frequently asked questions
Is CVE-2026-5781 fixed by the same patch as CVE-2026-5779?
Yes. CVE-2026-5781 ships in the same vendor advisory as CVE-2026-5779. Applying the patched build named in the primary write-up closes both.
What is the CVSS score for CVE-2026-5781?
The CVSS base score is 8.5 (High).
Is it being exploited?
It is not currently listed in CISA KEV.
References
- Official vendor advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-mphrxs-minerva
- NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2026-5781
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary write-up: How to Fix CVE-2026-5779
*Part of the Minerva bundle. Full procedure at CVE-2026-5779.*