CVE-2026-20643
Apple Safari
MEDIUM 5.4
At a glance
- Source
- NVD
- EPSS
- EPSS 0.36 % · percentile 30 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apple
- NVD status
- Modified
Description
A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Background Security Improvements for iOS, iPadOS, and macOS, Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may bypass Same Origin Policy.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | CISA-ADP |
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-12663
- GCVE · GCVE-0-2026-20643
CERT-FR advisories
- CERTFR-2026-AVI-1350 — Multiples vulnérabilités dans Oracle Java SE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0355 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0313 — Vulnérabilité dans les produits Apple · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*< 26.3.1cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*< 26.3.1cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*< 26.3.1
Affected products
| Product | Versions |
|---|---|
| Apple · Safari | affected 0 < 26.4 |
| Apple · iOS and iPadOS | affected 0 < 18.7.7 ; affected 0 < 26.3.1 (a) ; affected 0 < 26.4 |
| Apple · macOS | affected 0 < 26.3.1 (a) ; affected 0 < 26.3.2 (a) ; affected 0 < 26.4 |
| Apple · visionOS | affected 0 < 26.4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |