TI-2026-80596 Aliases CVE-2026-84633 GHSA-36fq-9pp4-9wjj

Path traversal in Apple macOS lets apps break out of sandbox

MEDIUM 40CWE-22Published 2026-10-26 · Updated 2026-11-03

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Apple macOS before 27 is affected by a path traversal flaw (CWE-22) caused by insufficient path validation. A local attacker with no privileges can make an app break out of its sandbox, with high impact to confidentiality and integrity.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A path traversal issue was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27. An app may be able to break out of its sandbox.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00156 4th percentileScored 2026-11-07

Fix Fixed macOS (Apple): 27

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	macOS	before 27	27	Patch available	CNA

macOS VendorApple Affected before 27 Fixed in 27 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:macos::::::::	before 27.0	Vulnerable	Apple

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 27.0 Vulnerable ·Apple

Remediation

Upgrade Apple macOS to version 27, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Fix · CNA macOS (Apple) Fixed in 27

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-26
Apple macOS 27
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-80706 Race condition in Apple iOS, macOS and visionOS lets apps write kernel memoryPriority LOW 29
- TI-2026-80707 Path traversal in Apple macOS lets malicious apps delete filesPriority LOW 27
- TI-2026-80836 Out-of-bounds read in Apple operating systems leaks process memoryPriority LOW 20
Show all 4 records →

Timeline

2026-10-26 Threatist record created from CVE-2026-84633
2026-10-27 Alias added: GHSA-36fq-9pp4-9wjj
2026-11-03 CVSS score added · CISA ADP
2026-11-03 Weakness changed · CISA ADP
2026-11-03 CISA SSVC decision points changed
2026-11-03 Priority changed: LOW → MEDIUM

References

Advisory 1

https://support.apple.com/en-us/149035

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

See all 3490 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences