CVE-2026-20673: Race Condition

Published Feb 11, 2026
·
Updated

A logic issue was addressed with improved checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. Turning off "Load remote content in messages” may not apply to all mail previews.

Other sources

Accessibility. An inconsistent user interface issue was addressed with improved state management.

— Apple

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

Credit

Wong Wee Xiang, Loh Boon Keat, piffz, Daniel Nurkin, Al Sadman Awal, Mohamed Hamdadou & Mahran Alhazmi, Hichem Maloufi, Christian Mina, Gerson Aldaz, qwerty j0y & Ricardo Garcia, Dorian Del Valle, Amy (amys.website), Anonymous(Trend Micro Zero Day Initiative), Yiğit Can YILMAZ@@yilmazcanyigit, George Karchemsky@@gkarchemsky(Trend Micro Zero Day Initiative), Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan, Srikanth V. Krishnamurthy, Mathy Vanhoef, Zhongcheng Li(IES Red Team), CVE-2025-59375, Richard Hyunho Im at Route Zero Security (routezero.security)@@richeeta, an anonymous researcher, Ron Masas(BreakPoint), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Google Threat Analysis Group, Mickey Jin@@patch1t, Noah Gregory (wts.dev), Óscar García Pérez, Stanislav Jelezoglo, Viktor Lord Härringtón, Enis Maholli (enismaholli.com), Gongyu Ma@@Mezone0, LeminLimez, @@cloudlldb, Dalibor Milanovic, HanQing(TSDubhe), Nan Wang@@eternalsakura13, Nathaniel Oh@@calysteon, EntryHi, Wang Yu(Cyberserval), Ryan Dowd@@_rdowd, Golden Helm Securities(Iru), Gergely Kalman@@gergely_kalman(Iru), Csaba Fitzl@@theevilbit(Iru), Gergely Kalman@@gergely_kalman, Ron Elemans, Murray Mike, 이동하 (Lee Dong Ha)(SSA Lab), Chunyu Song(NorthSea), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), Xiaolong Bai(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Keisuke Hosoda, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Asaf Cohen, Johnny Franks (zeroxjf), jioundai, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Kirin@@Pwnrin, Jian Lee@@speedyfriend433, Pwn2car, Morris Richman@@morrisinlife, Tom Van Goethem

Affected Software

10 affected componentsFixes available
Apple macOS Sequoia<15.7.4
15.7.4
Apple macOS Tahoe<26.3
26.3
Apple iOS<18.7.5
18.7.5
Apple iPadOS<18.7.5
18.7.5
Apple macOS Sonoma<14.8.4
14.8.4
Apple iPadOS<18.7.5
Apple iPhone OS<18.7.5
Apple macOS<14.8.4
Apple macOS>=15.0<15.7.4
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
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
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-2026-20673?

CVE-2026-20673 has been classified with a high severity due to its potential impact on user data and device security.

2

How do I fix CVE-2026-20673?

To fix CVE-2026-20673, update your device to the latest version of macOS Sequoia 15.7.4, macOS Tahoe 26.3, macOS Sonoma 14.8.4, iOS 18.7.5, or iPadOS 18.7.5.

3

What devices are affected by CVE-2026-20673?

CVE-2026-20673 affects Apple devices running macOS Sequoia, macOS Tahoe, macOS Sonoma, iOS, and iPadOS prior to their respective latest versions.

4

What type of issue is CVE-2026-20673?

CVE-2026-20673 is classified as a logic issue that could lead to inconsistent user interface behavior.

5

Is there a workaround for CVE-2026-20673 before applying the fix?

A temporary workaround for CVE-2026-20673 is to disable 'Load remote content in messages,' but this may not fully mitigate the vulnerability.

Company

Resources

Contact

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