CVE-2026-20673
Logic Issue in Apple Mail Preview Affects Remote Content Loading
Publication date: 2026-02-11
Last updated on: 2026-04-02
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | ipados | to 18.7.5 (exc) |
| apple | iphone_os | to 18.7.5 (exc) |
| apple | macos | to 14.8.4 (exc) |
| apple | macos | From 15.0 (inc) to 15.7.4 (exc) |
| apple | macos | From 26.0 (inc) to 26.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a logic issue related to the handling of mail previews in Apple operating systems. Specifically, the setting to turn off "Load remote content in messages" may not be applied to all mail previews, potentially allowing remote content to be loaded when it should be blocked.
How can this vulnerability impact me? :
Because the setting to disable loading remote content in messages may not apply to all mail previews, an attacker could potentially cause remote content to be loaded without the user's consent. This could lead to privacy issues, such as tracking or exposure to malicious content.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Apple devices to the fixed versions: macOS Sequoia 15.7.4, iOS 18.7.5, iPadOS 18.7.5, macOS Tahoe 26.3, or macOS Sonoma 14.8.4.
Note that turning off "Load remote content in messages" may not apply to all mail previews, so relying solely on this setting is not sufficient.