What is CVE-2026-50590?

CVE-2026-50590 is a medium-severity vulnerability in Mimecast Incydr, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.5/10. Published 2026-06-05.

How severe is CVE-2026-50590?

Medium severity. CVSS v3 base score is 4.5 out of 10.

Vulnerability in Mimecast Incydr

CVE-2026-50590

In Mimecast Incydr before 2.6.0, arbitrary file access can occur.

CVSS v3 metric

CVSS v3 base score 4.5 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Mimecast Incydr — versions 1.2.0

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-50590?: CVE-2026-50590 is a medium-severity vulnerability in Mimecast Incydr, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.5/10. Published 2026-06-05.
How severe is CVE-2026-50590?: Medium severity. CVSS v3 base score is 4.5 out of 10.