CVE-2026-20623

Protected user data disclosure via removed permissions code

Published Feb 11, 2026 · Updated Feb 11, 2026

Permissions bypass in Apple macOS before 26.3 allows local apps to access protected user data after user interaction. Apple identifies Foundation as the affected component but discloses only that vulnerable permissions code was removed, without naming a file, function, or access path. Execution is local and requires user interaction with an app; the reported consequence is protected-data disclosure without integrity or availability impact.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Permissions bypass in Apple macOS before 26.3 allows local apps to access protected user data after user interaction. Apple identifies Foundation as the affected component but discloses only that vulnerable permissions code was removed, without naming a file, function, or access path. Execution is local and requires user interaction with an app; the reported consequence is protected-data disclosure without integrity or availability impact.

The record

CVE
CVE-2026-20623
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-200, T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 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=unspecified <26.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <26.3

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
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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