EUVD-2026-15064
GHSA-4fmm-qm6h-33wc
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
4DescriptionCVE.org
A privacy issue was addressed with improved handling of user preferences. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. "Hide IP Address" and "Block All Remote Content" may not apply to all mail content.
AnalysisAI
A privacy vulnerability in Apple's Mail application allows the "Hide IP Address" and "Block All Remote Content" user preferences to fail inconsistently across certain mail content, potentially exposing user IP addresses and loading remote content despite explicit user configuration. This affects iOS, iPadOS, and multiple macOS versions. While no CVSS score or EPSS data is currently available and there is no indication of active exploitation in the wild (KEV status not listed), the vulnerability represents a direct circumvention of privacy controls that users explicitly enable to protect their identity and security posture.
Technical ContextAI
The vulnerability exists within Apple's Mail application stack across multiple operating systems (iOS, iPadOS, macOS Sequoia, Sonoma, and Tahoe versions). According to the CPE identifiers (cpe:2.3:a:apple:ios_and_ipados:*:*:*:*:*:*:*:* and cpe:2.3:a:apple:macos:*:*:*:*:*:*:*:*), the issue spans broad version ranges, suggesting a systemic handling defect in how privacy preferences are applied to mail content rendering. While no specific CWE is assigned, the root cause involves improper enforcement of user-configured privacy directives—analogous to CWE-693 (Protection Mechanism Failure) or CWE-923 (Improper Restriction of Communication Channel to Intended Endpoints). The Mail application's HTML rendering engine and IP address masking mechanisms fail to uniformly apply these settings across all content types or formatting variations.
RemediationAI
Immediately upgrade affected devices to iOS 26.4, iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.4 or later. Refer to Apple's official security advisories at https://support.apple.com/en-us/126792 (and the subsequent three references) for platform-specific patch delivery and installation instructions. Until patching is completed, users concerned about IP address leakage should consider using a VPN service (which encrypts and masks IP addresses at the transport layer, independent of Mail app preferences) and exercise caution when opening emails from untrusted senders. System administrators managing fleet deployments should enforce automatic updates and prioritize these releases in their patch schedules.
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External POC / Exploit Code
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