Insecure PIN derivation mechanism in Admin By Request (ABR)

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-78236
StatePUBLISHED
AssignerCSA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-26 08:16:46 UTC
Updated2026-09-03 16:59:26 UTC
DescriptionAn insecure PIN derivation mechanism in ABR allows a low-privileged user to escalate privileges to administrator by communicating over Cross-Process Communication (XPC) while masquerading as an Apple-signed process.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.000940000 probability, percentile 0.006460000 (date 2026-09-07)

Problem Types: CWE-284 | CWE-285 | CWE-287 | CWE-327 | CWE-287 CWE-287 Improper Authentication | CWE-285 CWE-285 Improper Authorization | CWE-327 CWE-327 Use of a Broken or Risky Cryptographic Algorithm | CWE-284 CWE-284 Improper Access Control

VersionSourceTypeScoreSeverityVector
3.15f57b9bf-260d-4433-bf07-b6a79e9bb7d4Secondary8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Admin By Request ABR Admin By Request ABR affected 5.2.2 and below macOS Not specified

References

ReferenceSourceLinkTags
docs.adminbyrequest.com/security-advisories/abr-mac-26-01.htm 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4 docs.adminbyrequest.com
www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4 www.csa.gov.sg
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: GovTech Cybersecurity Group (en)

Additional Advisory Data

Solutions

CNA: Users and administrators of affected product versions are advised to update to the latest version promptly.

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report