CVE-2026-20647

Local app access to sensitive user data

Published Feb 11, 2026 · Updated Feb 11, 2026

Information disclosure in Siri in Apple macOS before 26.3 allows local users to access sensitive user data through an app. Apple has not disclosed what Siri data-protection boundary failed or how an app reaches the protected information. Exploitation requires local app execution and user interaction; the published impact is limited to confidentiality, with no integrity or availability effect.

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

Information disclosure in Siri in Apple macOS before 26.3 allows local users to access sensitive user data through an app. Apple has not disclosed what Siri data-protection boundary failed or how an app reaches the protected information. Exploitation requires local app execution and user interaction; the published impact is limited to confidentiality, with no integrity or availability effect.

The record

CVE
CVE-2026-20647
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-200
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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

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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