CVE-2026-20673

Modified Modified - Updated After Analysis

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

A logic issue was addressed with improved checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. Turning off "Load remote content in messages” may not apply to all mail previews.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-02-11

Last Modified

2026-04-02

Generated

2026-07-06

AI Q&A

2026-02-12

EPSS Evaluated

2026-07-05

NVD

CVE-2026-20673

EUVD

EUVD-2026-5922

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

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

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.

Impact Analysis

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.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

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.

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