Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-43670

Severity CVSS v4.0:
Pending analysis
Type:
CWE-693 Protection Mechanism Failure
Publication date:
25/08/2026
Last modified:
27/08/2026

Description

A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may bypass Content Security Policy.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* 26.5 (excluding)
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* 18.7.9 (excluding)
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* 26.0 (including) 26.5 (excluding)
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* 18.7.9 (excluding)
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* 26.0 (including) 26.5 (excluding)
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* 26.0 (including) 26.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools