CVE-2026-28924

Contacts disclosure via symbolic-link race in Sync Services

Published May 11, 2026 · Updated May 11, 2026

Race condition in macOS Sync Services allows local users to read Contacts without consent through unsafe symbolic-link handling. Apple identifies Sync Services and symbolic-link handling as the locus but has not disclosed the raced operations or affected paths. A locally executed app must win the race on macOS Sonoma before 14.8.7, Sequoia before 15.7.7, or Tahoe before 26.5.

CVSS severity7.5
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in macOS Sync Services allows local users to read Contacts without consent through unsafe symbolic-link handling. Apple identifies Sync Services and symbolic-link handling as the locus but has not disclosed the raced operations or affected paths. A locally executed app must win the race on macOS Sonoma before 14.8.7, Sequoia before 15.7.7, or Tahoe before 26.5.

The record

CVE
CVE-2026-28924
Published
May 11, 2026
Updated
May 11, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-362, T1005
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. May 11, 2026CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <14.8.7
  2. Affected versionversion=0 <15.7.7
  3. Affected versionversion=0 <26.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=0 <14.8.7; version=0 <15.7.7; version=0 <26.5

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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