High 8.8Published Aug 25, 2026

CVE-2026-43670A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts.

Updated under an hour ago (2026-10-19 07:23 UTC)

Does this affect you?

It affects Apple Safari and 4 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Apple Safari

Exploited in the last 30 days

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.

CVSS: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-693
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apple
NVD analysis: Analyzed
Record last updated: Aug 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apple Safari apple:safari (from the name)	before 26.5	CNA record
Apple iOS and iPadOS apple:ios_and_ipados (from the name)	before 18.7.9; before 26.5	CNA record
Apple macOS apple:macos (from the name)	before 26.5	CNA record
apple safari apple:safari	before 26.5	NVD
apple ipados apple:ipados	before 18.7.9; from 26.0 before 26.5	NVD
apple iphone_os apple:iphone_os	before 18.7.9; from 26.0 before 26.5	NVD
apple macos apple:macos	from 26.0 before 26.5	NVD

References

https://support.apple.com/en-us/127110vendor-advisory, release-notes
https://support.apple.com/en-us/127111vendor-advisory, release-notes
https://support.apple.com/en-us/127115vendor-advisory, release-notes
https://support.apple.com/en-us/127121vendor-advisory, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.