CVE-2026-28821 | Vulnetix

CVE-2026-28821 PUBLISHED CVSS 8.4 HIGH

Reported by apple · Published March 25, 2026

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to gain elevated privileges.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
macos	apple	26.4, 15.7.5, 14.8.5

Risk scores

CVSS 3.1

8.4

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Vendor	Product	Versions
Apple	macOS	0, 0, 0
Apple	macOS	0, 0, 0

Timeline

Mar 24, 2026 CVE Published
Mar 25, 2026 EPSS Score (30 in total, the first dated here)
Mar 25, 2026 Coalition ESS Score (2 in total, the first dated here)
Mar 25, 2026 PoC Published (4 in total, the first dated here)
Jun 2, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-28821
vulnetix vdb fixes CVE-2026-28821

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-28821/fixes/registry"

The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart

References

Look up in the Resolve Platform →