CVE-2026-39871

HIGH
MEDIUM Priority: 0.02 BB Relevance: 75/100
Published: 2026-05-11 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: None
A: None

Description

A path handling issue was addressed with improved logic. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to observe unprotected user data.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
apple macos 14.0 – 14.8.7

References & Advisories (3)

https://support.apple.com/en-us/127115
Release Notes Vendor Advisory
https://support.apple.com/en-us/127116
Release Notes Vendor Advisory
https://support.apple.com/en-us/127117
Release Notes Vendor Advisory

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.31%
Raw Score 0.003110
Percentile 23.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00311
2026-10-28
0.00311

Intelligence Sources

nvd ref →