CVE-2026-20683 json
An authentication issue was addressed with improved state management.
published 2026-09-14 55 d ago modified 2026-10-26 13 d ago also EUVD-2026-78039
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
An authentication issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An app may be able to use the Sign In With Apple authentication flow to access the user's Apple Account.
Patch / fix
- Apple iOS and iPadOS 27
- Apple macOS 15.8, 26.7, 27
- Apple visionOS 27
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 53 d ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
Affected products
- Apple iOS and iPadOS
- Apple macOS
- Apple visionOS
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
support.apple.com
/en-us/149034
release-notes, vendor-advisory
-
support.apple.com
/en-us/149035
release-notes, vendor-advisory
-
support.apple.com
/en-us/149038
release-notes, vendor-advisory
-
support.apple.com
/en-us/149042
release-notes, vendor-advisory
-
support.apple.com
/en-us/149043
release-notes, vendor-advisory
Sources
- CVE List CVE-2026-20683
- NVD CVE-2026-20683
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