CVE-2026-20660

HIGH

macOS Tahoe <26.3 - Info Disclosure

Title source: llm

Description

A path handling issue was addressed with improved logic. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. A remote user may be able to write arbitrary files.

Exploits (2)

github WORKING POC 10 stars

by XiaomingX · pythonpoc

https://github.com/XiaomingX/data-cve-poc-py-v1/tree/main/2026/CVE-2026-20660

View Code ZIP pw:eip

nomisec WORKING POC

by retX0 · poc

https://github.com/retX0/CVE-2026-20660

View Code ZIP pw:eip

References (7)

https://support.apple.com/en-us/126795

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126346

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126347

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126348

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126350

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126353

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126354

Scores

CVSS v3 7.5

EPSS 0.0002

EPSS Percentile 6.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE

CWE-22

Status published

Products (12)

Apple/iOS and iPadOS < 18.7.5

Apple/iOS and iPadOS < 26.3

apple/ipados < 18.7.5

apple/iphone_os < 18.7.5

apple/macos < 14.8.4

Apple/macOS < 14.8.4

Apple/macOS < 15.7.5

Apple/macOS < 26.3

apple/safari < 26.3

Apple/Safari < 26.3

... and 2 more

Published Feb 11, 2026

Tracked Since Feb 18, 2026