CVE-2026-65390: Race Condition

Published Aug 17, 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

An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.

— MITRE

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

— Apple

App Intents. A privacy issue was addressed with improved access restrictions.

— Apple

App Store. A permissions issue was addressed with additional restrictions.

— Apple

Credit

Mustafa Calap@@ordinal0, dbg.re), Meta Red Team X - Nik Tsytsarkin, Xint Code, Geonha Lee@@leegn4a, an anonymous researcher, f00l@@PPPF00L, 3ndy1@@_3ndy1, Minghao Lin@@Y1nkoc, 云散花折, Arjanit Isufi, Ruslan Dautov, hxr1, Drinor Selmanaj (Sentry), Surya Narayan Kushwaha, Ashish Kunwar(Positive Technologies), Mikhail Lozhnikov(Positive Technologies), Bhaswanth Chigurupati(STAR Labs SG Pte), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Janggoon Lee(Out of Bounds), OpenAI Codex Security - Amy Burnett, wwwlk, Henock Habte, Charles Kern, Shubham Chaskar, Seonwook Kim, lattice, Josef Korbel, Thomas Guillem, Niels Hofmans, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Josef Korbel (Citadelo), Kun Peeks@@SwayZGl1tZyyy, Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), Dung Do@@_piers2(Calif), 杉山 壮太, Talal Haj Bakry(Mysk Inc), Tommy Mysk@@mysk_co(Mysk Inc), Mohit Negi, Shubham Chaskar(Braze Security Team), Tommy DeVoss@@thedawgyg(Braze Security Team), Myungyong Lee, Kwak Kiyong@@Pwnkai23, Song Nuri, Bedran Karakoc(Ruhr University Bochum), Tobias Funke(Ruhr University Bochum), Jacopo Clark(Ruhr University Bochum), Katharina Kohls(Ruhr University Bochum), Peter Malone, Arni Hardarson (Neonix Security), Stuart Wallace(Totally Not Malicious Software), Ilya Andr (andrd3v)(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), CJ Vana, David Strnadel, Daniel Febrero, Asaf Cohen, Gongyu Ma@@Mezone0, Jian Lee@@speedyfriend433, Cem Onat Karagun, Zhongcheng Li (CK01), Prashan Samarathunge, Franco Belman at Blackwing Intelligence, Zhongcheng Li(IES Red Team), Calif.io in collaboration with Claude, Anthropic Research, CVE-2026-65414, jioundai, Stanislav Jelezoglo, Heiner Gerdes, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Dawuge(Shuffle Team), Chris Bailey - Short Circuit, Meta Product Security, Stuart Wallace, Pavan Nallamothu, ret2happy, stratan@@5tratan, Rahul Raj, N.M.Praveen Nawarathne@@zblockrat, James Gill @infosec.exchange)@@jjtech, Nik Tsytsarkin, Bruce Dang(Calif), Jiyong Yang, Vishal Patidar, Roman Zabicki, Justin O'Leary@@olearysec(olearysec), Chanwit Muenprakoddee (ChemIndy), Mihalis Haatainen, Ashish Kunwar, Ari Hawking, 이재영, Seiji Sakurai@@HeapSmasher, genter0(Calif), Svetoslav Stolarov(Calif), Josh Maine(Calif), Dun, Ryan Hileman via Xint Code (xint.io), Bhaswanth Chigurupati, Tristan Madani@@TristanInSec(Talence Security), Ye Zhang@@VAR10CK(Baidu Security), Hiroki Imai (LAC Co., Ltd.), R4mbb(KRsecurity), Vladislav Shevchenko (Positive Technologies), Fábio Luís@@scanpt(STAR Labs SG Pte), Richard Zana(STAR Labs SG Pte), OpenAI, Hüseyin Kabasakal@@HuseyinK01, Kitten Food, Myeonghun Pak, Nathaniel Oh@@calysteon, Alan Banderas@@creeper4004, Hoffcona(IES Red Team), Issa Sancho, Ilya Andr (andrd3v)(Positive Technologies), Dhiyanesh Selvaraj@@redroot97, Narendra Singh@@_3P1C, John Lussier, Filip Olszak, Owen Pawling@@owenpawling, Gongyu Ma (twitter@@Mezone0, YingMuo@@YingMuo(DEVCORE Research Team), Sindre Sorhus, Constantin Clerc(Calif), Shad J(Calif), huami1314@@huamidev(Calif), Huy Nguyen@@34306(Calif), Zeyang Li&Yuxiang Wang(Chongqing Telecom), Souta Sugiyama, Viggo Lekdorf, Junhyuk Im(S2W Inc), Seungyun Lee(S2W Inc), Jakob Pammer, Drin Raci(sentry), Siyeong kim, Junyeong Lee (jylab.github.io), Merrick Hare, Aditya Kumar, John Nzyuko Uvyu, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Yiğit Can YILMAZ@@yilmazcanyigit, Hongsik Kim (mnur), Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, Jasminder Pal Singh, Lehan Dilusha Jayasingha (Sri Lanka), Ilya Andr (andrd3v), Mathis Mansière, AL Najafi, tamdao, Geoffrey Lovelace, Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Morris Richman@@morrisinlife, Tristan Brennan, Rodolphe Brunetti@@eisw0lf(Lupus Nova), Abodi Dawoud(van Dijk), Merrick Hare(van Dijk), Roel(van Dijk), OSORI, Jonghoon Han (Aegis)(Shuffle Team), bubu(Shuffle Team), 이재영(Shuffle Team), Tae Woo Kim(Shuffle Team), Lehan Dilusha Jayasingha, Tomi Garcia (archyxsec), Kwak Kiyong / kakaogames, OGINOME Tomohito

Affected Software

14 affected componentsFixes available
Apple tvOS<27
27
Apple WatchOS<27
27
Apple visionOS<27
27
Apple macOS Tahoe<26.6.2
26.6.2
Apple iOS<26.6.1
26.6.1
Apple iPadOS<26.6.1
26.6.1
Apple Safari<26.6.1
26.6.1
Apple Safari<26.6.1
Apple iPadOS<26.6.1
Apple iPhone OS<26.6.1
Apple macOS<26.6.2
Apple tvOS<27.0
Apple visionOS<27.0
Apple WatchOS<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 26.6.2
  2. Upgrade

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

    Fixed in 26.6.1
  3. Upgrade

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

    Fixed in 27
  4. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 26.6.1
  5. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 26.6.1
  6. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 26.6.1
  7. Upgrade

    Upgrade macOS Tahoe to a version that resolves this vulnerability.

    Fixed in 26.6.2
  8. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 27
  9. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 27
  10. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 27

Event History

Aug 17, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Sep 14, 2026
CVE Published
via MITRE·08:47 PM
Data Sourced
via MITRE·08:47 PM
DescriptionWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What must an attacker do to exploit this issue?

The attacker would need to cause a user to process maliciously crafted web content. The CVSS vector indicates network reachability, no required privileges, low attack complexity, and required user interaction.

2

Which platforms have fixes available?

Fixes are identified in tvOS 27, visionOS 27, and watchOS 27. The advisory also lists Safari 26.6.1, iOS 26.6.1, iPadOS 26.6.1, and macOS Tahoe 26.6.2.

3

What is the potential impact of successful exploitation?

Processing maliciously crafted web content may lead to memory corruption. The supplied CVSS score is 8.8 and rates confidentiality, integrity, and availability impact as high.

Company

Resources

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