Path Traversal in Apple iOS And Ipados
CVE-2026-20688
A path handling issue was addressed with improved validation. 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, visionOS 26.4. An app may be able to break out of its sandbox.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Apple iOS And Ipados — versions 0
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions 0
- Apple Visionos — versions 0
Weakness classification (CWE)
References
- support.apple.com/en-us/126792 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126794 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126795 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126796 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/126799 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20688?
- CVE-2026-20688 is a critical-severity vulnerability in Apple iOS And Ipados, classified under Path Traversal. CVSS score: 9.3/10. Published 2026-03-25.
- How severe is CVE-2026-20688?
- Critical severity. CVSS v3 base score is 9.3 out of 10.