CVE-2026-20658: Input Validation

Published Feb 11, 2026
·
Updated

A package validation issue was addressed by blocking the vulnerable package. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

Other sources

Admin Framework. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

AppleEvents. An authorization issue was addressed with improved state management.

— Apple

AppleKeyStore. A use after free issue was addressed with improved memory management.

— Apple

AppleMobileFileIntegrity. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

AppleMobileFileIntegrity. An injection issue was addressed with improved validation.

— Apple

Credit

Mickey Jin@@patch1t, Noah Gregory (wts.dev), Johnny Franks (zeroxjf), an anonymous researcher, Ryan Dowd@@_rdowd, jioundai, Amy (amys.website), @@cloudlldb, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Anonymous(Trend Micro Zero Day Initiative), Yiğit Can YILMAZ@@yilmazcanyigit, Golden Helm Securities(Iru), Gergely Kalman@@gergely_kalman(Iru), Csaba Fitzl@@theevilbit(Iru), Gergely Kalman@@gergely_kalman, Google Threat Analysis Group, Kirin@@Pwnrin, Asaf Cohen, Murray Mike, George Karchemsky@@gkarchemsky(Trend Micro Zero Day Initiative), Jian Lee@@speedyfriend433, Keisuke Hosoda, Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan, Srikanth V. Krishnamurthy, Mathy Vanhoef, CVE-2025-59375, Ron Masas(BreakPoint), Chunyu Song(NorthSea), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Pwn2car, Enis Maholli (enismaholli.com), Morris Richman@@morrisinlife, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Gongyu Ma@@Mezone0, LeminLimez, Nathaniel Oh@@calysteon, HanQing(TSDubhe), Nan Wang@@eternalsakura13, Tom Van Goethem, EntryHi, Wang Yu(Cyberserval)

Affected Software

2 affected componentsFixes available
Apple macOS Tahoe<26.3
26.3
Apple macOS>=26.0<26.3

Event History

Feb 11, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description
CVE Published
via MITRE·10:58 PM
Data Sourced
via MITRE·10:58 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-20658?

The severity of CVE-2026-20658 is considered high due to the potential for an application to gain root privileges.

2

How do I fix CVE-2026-20658?

To fix CVE-2026-20658, update your system to macOS Tahoe version 26.3 or later.

3

What type of issue is described by CVE-2026-20658?

CVE-2026-20658 describes a package validation issue and parsing problem in the handling of directory paths.

4

Which versions of macOS are affected by CVE-2026-20658?

Versions of macOS Tahoe prior to 26.3 are affected by CVE-2026-20658.

5

What can occur due to the vulnerability in CVE-2026-20658?

Due to the vulnerability in CVE-2026-20658, an app may be able to gain elevated privileges, posing a significant security risk.

Company

Resources

Contact

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