Apple macOS up to 26.4 User Information information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple macOS up to 26.4. Affected by this issue is some unknown functionality of the component User Information Handler. Performing a manipulation results in information disclosure. This vulnerability is reported as CVE-2026-28961. The attack may be carried out on the physical device. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apple macOS up to 26.4. This affects some unknown functionality of the component User Information Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

This issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5. An attacker with physical access to a locked device may be able to view sensitive user information.

It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2026-28961 since 03/03/2026. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 26.5 eliminates this vulnerability.

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Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 4.6
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: macOS 26.5

Timelineinfo

03/03/2026 CVE reserved
05/12/2026 +69 days Advisory disclosed
05/12/2026 +0 days VulDB entry created
07/28/2026 +77 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2026-28961 (🔒)
GCVE (CVE): GCVE-0-2026-28961
GCVE (VulDB): GCVE-100-362847
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 05/12/2026 04:18
Updated: 07/28/2026 18:02
Changes: 05/12/2026 04:18 (57), 05/18/2026 13:42 (11), 07/28/2026 18:02 (1)
Complete: 🔍
Cache ID: 216::103

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