What is CVE-2026-28889?

CVE-2026-28889 is a medium-severity vulnerability in Apple Xcode, classified under Improper Privilege Management. CVSS score: 6.2/10. Published 2026-03-25.

How severe is CVE-2026-28889?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Privilege escalation in Apple Xcode

CVE-2026-28889

A permissions issue was addressed with additional restrictions. This issue is fixed in Xcode 26.4. An app may be able to read arbitrary files as root.

Vulnerability class: Privilege Escalation

Published 2026-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (3.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Apple Xcode — versions 0

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

support.apple.com/en-us/126801 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-28889?: CVE-2026-28889 is a medium-severity vulnerability in Apple Xcode, classified under Improper Privilege Management. CVSS score: 6.2/10. Published 2026-03-25.
How severe is CVE-2026-28889?: Medium severity. CVSS v3 base score is 6.2 out of 10.