CVE-2026-86981: Buffer Overflow

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 out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.

— NVD

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

— Apple

Credit

Hyunwoo Kim@@v4bel, Daisuke Hatakeyama, Ryohei Ueki Research)@@SYZD, Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Adriatik Raci, Manish Bhatt, Amazon Leo Security, Nathaniel Oh@@calysteon, Richard Zana, Meta Red Team X - Nik Tsytsarkin, Junyeong Lee (jylab.github.io), Merrick Hare, Narendra Singh@@_3P1C, John Nzyuko Uvyu, Aditya Kumar, Geoffrey Lovelace, an anonymous researcher, Bruce Dang(Calif), Anthropic Research, Luke Symons, f00l@@PPPF00L, 3ndy1@@_3ndy1, Tommy DeVoss@@thedawgyg(Braze Security Team), Jiyong Yang, Roman Zabicki, Redon Gashi(Sentry), Arni Hardarson (Neonix Security)(Talence Security), Tristan Madani@@TristanInSec(Talence Security), 정우 하, Aswin Kumar Gokulakannan, Peter Malone, Dun, Jonathan Bar Or@@yo_yo_yo_jbo(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Alfredo Pesoli@@__rev(Bynar), Justin O'Leary@@olearysec(olearysec), 진규정 (Gyujeong Jin, @@G1uN4sh, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, 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), f0r(MurphySec), Mihalis Haatainen, Ashish Kunwar, Ari Hawking, 이재영, Ruslan Dautov, hxr1, Bernhard Jackiewicz, Svetoslav Stolarov(Calif), Josh Maine(Calif), genter0, James Duffy@@0x4A616D657344, Eddy Tsalolikhin, Surya Narayan Kushwaha, Omar Cerrito, Hiroki Imai (LAC Co., Ltd.), Ye Zhang@@VAR10CK(Baidu Security), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Abhijeet Singh (www.linkedin.com/in/abhiunix/), Stuart Thomas, Ashish Kunwar(Positive Technologies), Mikhail Lozhnikov(Positive Technologies), Bhaswanth Chigurupati, Fábio Luís@@scanpt(STAR Labs SG Pte), Richard Zana(STAR Labs SG Pte), Vladislav Shevchenko (Positive Technologies), OpenAI, Hüseyin Kabasakal@@HuseyinK01, CVE-2019-5598, Wang Yu, Mohamed Wedatalla, Arjanit Isufi, HvxyZLF, Chris Bailey - Short Circuit, Adrián Díaz Aguilar, Dawuge(Shuffle Team), Armend Gashi, Yiğit Can YILMAZ@@yilmazcanyigit, Hoffcona(IES Red Team), Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Kenneth Chew, Dora Orak, Arbuckle@@Ethan, @@leptos_null, Franco Belman at Blackwing Intelligence, Hongsik Kim (mnur), stratan@@5tratan, Rahul Raj, Liu Xue & 九宫格(Chongqing Telecom), Dhiyanesh Selvaraj@@redroot97, 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), John Lussier, Filip Olszak, OSORI, Ricardo Prado, Jakob Pammer(Calif), 재영 정(Calif), 재영 정(ThreatBook), Peter Malone(ThreatBook), Jay Patel, 재영 정, Dave G., Cem Onat Karagun, YingMuo@@YingMuo(DEVCORE Research Team), Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), 杉山 壮太, AL Najafi, Abodi Dawoud, Sindre Sorhus, 糖豆爸爸(@晴天组织), Niels Hofmans, Robert Mindo, Ujjwal Reddy Kalvolu Sreenivasa Reddy, Johan Wahyudi, 이재영(Positive Technologies), Seung Je Seong(Positive Technologies), Jakob Pammer(Positive Technologies), Ilya Andr (andrd3v)(Positive Technologies), Jérôme Djouder, Amy (amys.website), Meridian Miftari, Aaron Grattafiori - NVIDIA AI Red Team, Zeyang Li&Yuxiang Wang(Chongqing Telecom), 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), Drin Raci(sentry), Stuart Wallace, Stuart Wallace(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), Jian Lee@@speedyfriend433, Ilya Andr (andrd3v), Gongyu Ma@@Mezone0, David Strnadel, CJ Vana, Asaf Cohen, LiangWei, Zhongcheng Li (CK01), Lehan Dilusha Jayasingha (Sri Lanka), Jasminder Pal Singh, Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, tamdao, Mickey Jin@@patch1t, Pavan Nallamothu, Jared Reyes, D4rthL, Mohamad Dawoud / Abodi Dawoud, Ahmed Alwardani, Zhongcheng Li(IES Red Team), Mr.Gedik@@h4ck2s3c(Turkish Technology), Mr.Gedik@@h4ck2s3c, Oren Yomtov, Morris Richman@@morrisinlife, Kun Peeks@@SwayZGl1tZyyy, Calif.io in collaboration with Claude, CVE-2026-65414, Marc Newlin(SkySafe), jioundai, Sanny Mitra(Cystack), Sihyun Roh (Compsec(Cystack), SNU)(Cystack), ngockhanh(Cystack), 정우 하@@0xfa11babe, Suresh Sundaram, Surej Sekhar, Ataberk Yavuzer, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Mathis Mansière, Siyeong kim, Meta Product Security, Ryan Hughes, Kujtim Kryeziu (Sentry), Mustafa Calap@@ordinal0, dbg.re), Yongyue WANG AKA Brian.W(OKX security), Meshaal @ Darkcov, Joseph Shamoon, 章鱼哥 （aipyaipy.com）@@aipy, instantraaamen (github.com/instantraaamen) Contact: masa.shiramizu.com@@gmail, 章鱼哥 (aipyaipy.com）@@aipy, 章鱼哥 (aipyaipy.com)@@aipy, Thiago Mayllart, N.M.Praveen Nawarathne@@zblockrat, James Gill @infosec.exchange)@@jjtech, PETOWORKS의 Bugeun Choi@@Bugeun, flower xu, Ryohei Ueki Research)@@SYZD, Manish Bhatt(Nosebeard Labs), Amazon Leo Security(Nosebeard Labs), Nathaniel Oh@@calysteon(Nosebeard Labs), Lyutoon, R4mbb(KRsecurity), Dave G.(supernetworks), Alex Radocea(supernetworks), Matthew Zamat, Prathamesh Walunj(Iru), Csaba Fitzl@@theevilbit(Iru), Ahmad Al Harrizuan Izadin, wdszzml, Alfredo Pesoli via Bynario Atlas (bynar.io)@@__rev, Abodi Dawoud(van Dijk), Roel(van Dijk), He Wei（ギカク)(Calif)

Affected Software

6 affected componentsFixes available
Apple macOS Sequoia<15.8
Apple macOS Tahoe<26.7
Apple macOS Sequoia<15.8
15.8
Apple macOS Tahoe<26.7
26.7
Apple macOS>=15.0<15.8
Apple macOS>=26.0<26.7

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 15.8
  2. Upgrade

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

    Fixed in 26.7
  3. Upgrade

    Upgrade macOS to a version that resolves this vulnerability.

    Fixed in 15.8
  4. Upgrade

    Upgrade macOS to a version that resolves this vulnerability.

    Fixed in 26.7

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

Which macOS releases contain the fix?

The issue is fixed in macOS Sequoia 15.8 and macOS Tahoe 26.7.

2

What level of access would an attacker need?

An app may be able to trigger the issue, so exploitation requires the ability to run an application on the affected Mac.

3

What is the reported impact?

Successful exploitation may cause unexpected system termination.

Company

Resources

Contact

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