Apple macOS: A document may be written to a temporary file when using print preview
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
A privacy issue was addressed with improved handling of temporary files. This issue is fixed in macOS Tahoe 26.4. A document may be written to a temporary file when using print preview.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA macOS (Apple) Fixed in 26.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 26.4
23 records Highest priority Priority MEDIUM 1 MEDIUM, 22 LOW
Other records, highest priority first
- TI-2026-16688 Apple macOS: A user may be able to elevate privilegesPriority MEDIUM 40
- TI-2026-23036 Heap-based buffer overflow in Apple macOSPriority LOW 39
- TI-2026-23031 Improper access control in Apple macOSPriority LOW 39
Timeline
- 2026-10-02 Threatist record created from CVE-2026-28893
- 2026-10-03 Alias added: GHSA-g5mw-whmc-phhw
References
Advisory 1
More Apple Macos vulnerabilities
- TI-2026-46583 Improper authentication in Apple macOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-28893 · CVE Program
- CVE-2026-28893 · NVD
- FIRST EPSS
- GHSA-g5mw-whmc-phhw · GitHub Advisory Database · CC BY 4.0
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