CVE-2026-28850: Use After Free

Published Sep 14, 2026
·
Updated

Accelerate Framework. An out-of-bounds write issue was addressed with improved bounds checking.

Other sources

Accessibility. This issue was addressed with improved data protection.

— Apple

Accounts. This issue was addressed with additional entitlement checks.

— Apple

AMD. The issue was addressed with improved checks.

— Apple

An authorization issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.8, visionOS 27. An app may be able to access sensitive user data.

— MITRE

APFS. A buffer overflow was addressed with improved size validation.

— Apple

Credit

Peter Malone, Arni Hardarson (Neonix Security), Cem Onat Karagun, an anonymous researcher, Zhongcheng Li (CK01), Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, Jasminder Pal Singh, Lehan Dilusha Jayasingha (Sri Lanka), Johan Wahyudi, S. Rosario, tamdao, Franco Belman at Blackwing Intelligence, Mustafa Calap@@ordinal0, dbg.re), Meta Red Team X - Nik Tsytsarkin, Ilya Andr (andrd3v), Zhongcheng Li(IES Red Team), Calif.io in collaboration with Claude, Anthropic Research, Ruslan Dautov, Ye Zhang@@VAR10CK(Baidu Security), CVE-2026-65414, jioundai, Stanislav Jelezoglo, Heiner Gerdes, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Jihwan Yoon, Mathis Mansière, Duc Anh Nguyen & Ta Duc Thien, Nik Tsytsarkin, Chris Bailey - Short Circuit, Siyeong kim, Meta Product Security, AL Najafi, Pavan Nallamothu, ret2happy, stratan@@5tratan, Rahul Raj, N.M.Praveen Nawarathne@@zblockrat, James Gill @infosec.exchange)@@jjtech, Junyeong Lee (jylab.github.io), Merrick Hare, Aditya Kumar, John Nzyuko Uvyu, Narendra Singh@@_3P1C, Geoffrey Lovelace, Bruce Dang(Calif), Tommy DeVoss@@thedawgyg(Braze Security Team), Jiyong Yang, He Wei (ギカク), Justin O'Leary@@olearysec(olearysec), Geonha Lee@@leegn4a, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Chanwit Muenprakoddee (ChemIndy), f00l@@PPPF00L, 3ndy1@@_3ndy1, Minghao Lin@@Y1nkoc, 云散花折, Arjanit Isufi, Mihalis Haatainen, Ashish Kunwar, Ari Hawking, 이재영, David Strnadel, hxr1, Seiji Sakurai@@HeapSmasher, genter0(Calif), Svetoslav Stolarov(Calif), Josh Maine(Calif), Dun, Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Ryan Hileman via Xint Code (xint.io), Drinor Selmanaj (Sentry), Surya Narayan Kushwaha, Bhaswanth Chigurupati, Tristan Madani@@TristanInSec(Talence Security), Hiroki Imai (LAC Co., Ltd.), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), R4mbb(KRsecurity), Vladislav Shevchenko (Positive Technologies), Fábio Luís@@scanpt(STAR Labs SG Pte), Richard Zana(STAR Labs SG Pte), Ashish Kunwar(Positive Technologies), Mikhail Lozhnikov(Positive Technologies), OpenAI, Hüseyin Kabasakal@@HuseyinK01, Kitten Food, Sindre Sorhus, Morris Richman@@morrisinlife, Stuart Wallace, Tristan Brennan, Myeonghun Pak, Nathaniel Oh@@calysteon, Alan Banderas@@creeper4004, Rodolphe Brunetti@@eisw0lf(Lupus Nova), Yiğit Can YILMAZ@@yilmazcanyigit, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Hoffcona(IES Red Team), Piotr Jerzy Duszynski(MurphySec), f0r(MurphySec), PETOWORKS의 Bugeun Choi@@Bugeun, ธนกฤต ทัฬหะ, Hongsik Kim (mnur), Issa Sancho, Ilya Andr (andrd3v)(Positive Technologies), CJ Vana, Gongyu Ma@@Mezone0, Dhiyanesh Selvaraj@@redroot97, Roman Zabicki, John Lussier, Filip Olszak, Abodi Dawoud(van Dijk), Merrick Hare(van Dijk), Roel(van Dijk), Owen Pawling@@owenpawling, OSORI, Jonghoon Han (Aegis)(Shuffle Team), bubu(Shuffle Team), 이재영(Shuffle Team), Tae Woo Kim(Shuffle Team), Dawuge(Shuffle Team), YingMuo@@YingMuo(DEVCORE Research Team), Lehan Dilusha Jayasingha, Zeyang Li&Yuxiang Wang(Chongqing Telecom), Janggoon Lee(Out of Bounds), OpenAI Codex Security - Amy Burnett, Souta Sugiyama, wwwlk, Henock Habte, Charles Kern, Seonwook Kim, Shubham Chaskar, lattice, Josef Korbel, Viggo Lekdorf, Thomas Guillem, Niels Hofmans, Josef Korbel (Citadelo), Kun Peeks@@SwayZGl1tZyyy, Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), 杉山 壮太, Dung Do@@_piers2(Calif), Tomi Garcia (archyxsec), Kwak Kiyong / kakaogames, Junhyuk Im(S2W Inc), Seungyun Lee(S2W Inc), OGINOME Tomohito, Mohit Negi, Myungyong Lee, Kwak Kiyong@@Pwnkai23, Song Nuri, Efstratios Kaplanellis@@5tratan(Almamater Technologies), Jakob Pammer, Drin Raci(sentry), Jian Lee@@speedyfriend433, Hyunwoo Kim@@v4bel, Daisuke Hatakeyama, Ryohei Ueki Research)@@SYZD, Adriatik Raci, Manish Bhatt, Amazon Leo Security, Richard Zana, Luke Symons, Redon Gashi(Sentry), Arni Hardarson (Neonix Security)(Talence Security), 정우 하, Aswin Kumar Gokulakannan, Jonathan Bar Or@@yo_yo_yo_jbo(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Alfredo Pesoli@@__rev(Bynar), 진규정 (Gyujeong Jin, @@G1uN4sh, Musaab Khan@@bxff(Tencent Xuanwu Lab), XlabAI Team(Tencent Xuanwu Lab), Atuin Automated Vulnerability Discovery Engine, Guannan Wang, Zhanpeng Liu, Jiashuo Liang, Guancheng Li, Iain Harkiss, Daniel Febrero, Piotr Jerzy Duszynski(Google Project Zero), ธนกฤต ทัฬหะ(MurphySec), Rahul Raj(MurphySec), PETOWORKS의 Bugeun Choi@@Bugeun(MurphySec), Bernhard Jackiewicz, genter0, James Duffy@@0x4A616D657344, Eddy Tsalolikhin, Omar Cerrito, Abhijeet Singh (www.linkedin.com/in/abhiunix/), Stuart Thomas, CVE-2019-5598, Wang Yu, Mohamed Wedatalla, HvxyZLF, Adrián Díaz Aguilar, Armend Gashi, Kenneth Chew, Dora Orak, Arbuckle@@Ethan, @@leptos_null, Liu Xue & 九宫格(Chongqing Telecom), Jaeho Nam(SNU CSE MMLAB), Jungbum Lee(SNU CSE MMLAB), Sangwi Kang(SNU CSE MMLAB), Hyeonguk Ko(SNU CSE MMLAB), Taekyoung Kwon(SNU CSE MMLAB), Ricardo Prado, Jakob Pammer(Calif), 재영 정(Calif), 재영 정(ThreatBook), Peter Malone(ThreatBook), Jay Patel, 재영 정, Dave G., Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Abodi Dawoud, 糖豆爸爸(@晴天组织), Robert Mindo, Ujjwal Reddy Kalvolu Sreenivasa Reddy, 이재영(Positive Technologies), Seung Je Seong(Positive Technologies), Jakob Pammer(Positive Technologies), Jérôme Djouder, Amy (amys.website), Meridian Miftari, Aaron Grattafiori - NVIDIA AI Red Team, Tomi (tk0) Koski@@tomikoski, Hari Shanmugam (The Hxr1), Joseph Semaan(Calif), bubu(Calif), Omar Cerrito(Calif), HE WEI (ギカク)(Calif), Roman Zabicki(Calif), Richard Zana(Calif), Chris Bailey - Short Circuit(Calif), Aswin Kumar Gokulakannan(Calif), Surya Narayan Kushwaha(Calif), HE WEI（ギカク）(Calif), Kraken Cryptocurrency Exchange(Nosebeard Labs), Niels Hofmans(sentry), Stuart Wallace(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), Asaf Cohen, LiangWei, Mickey Jin@@patch1t, Jared Reyes, D4rthL, Mohamad Dawoud / Abodi Dawoud, Ahmed Alwardani, Mr.Gedik@@h4ck2s3c(Turkish Technology), Mr.Gedik@@h4ck2s3c, Oren Yomtov, Marc Newlin(SkySafe), Sanny Mitra(Cystack), Sihyun Roh (Compsec(Cystack), SNU)(Cystack), ngockhanh(Cystack), 정우 하@@0xfa11babe, Suresh Sundaram, Surej Sekhar, Ataberk Yavuzer, Ryan Hughes, Kujtim Kryeziu (Sentry), Yongyue WANG AKA Brian.W(OKX security), 章鱼哥 （aipyaipy.com）@@aipy, instantraaamen (github.com/instantraaamen) Contact: masa.shiramizu.com@@gmail, Meshaal @ Darkcov, Joseph Shamoon, 章鱼哥 (aipyaipy.com）@@aipy, Thiago Mayllart, flower xu, Ryohei Ueki Research)@@SYZD

Affected Software

5 affected componentsFixes available
Apple visionOS<27
Apple visionOS<27
27
Apple macOS Sequoia<15.8
15.8
Apple macOS<15.8
Apple visionOS<27.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 27
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 15.8
  3. Upgrade

    Upgrade macOS Sequoia to a version that resolves this vulnerability.

    Fixed in 15.8
  4. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 27

Event History

Sep 14, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Oct 20, 2026
CVE Published
via MITRE·12:50 AM
Data Sourced
via MITRE·12:50 AM
DescriptionWeakness
Data Sourced
via NVD·01:17 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What level of access does an attacker need to exploit this issue?

Exploitation requires local access and low privileges. No user interaction is required.

2

What could a successful exploit allow?

A malicious app may be able to access sensitive user data. The provided CVSS vector indicates confidentiality impact only, with no stated integrity or availability impact.

3

Which systems are known to be fixed?

Apple states that this issue is fixed in visionOS 27.

Company

Resources

Contact

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