CVE-2026-65391: 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 out-of-bounds write issue was addressed with improved bounds checking. 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.
— NVD
APFS. An out-of-bounds write issue was addressed with improved bounds checking.
— Apple
App Store. A permissions issue was addressed with additional restrictions.
— Apple
Apple Account. An authentication issue was addressed with improved state management.
— Apple
Credit
Mustafa Calap@@ordinal0, dbg.re), Meta Red Team X - Nik Tsytsarkin, Zhongcheng Li(IES Red Team), Calif.io in collaboration with Claude, Anthropic Research, Peter Malone, Ruslan Dautov, Ye Zhang@@VAR10CK(Baidu Security), CVE-2026-65414, an anonymous researcher, Stanislav Jelezoglo, Heiner Gerdes, Siyeong kim, Stuart Wallace, ret2happy, Meta Product Security, 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, Nik Tsytsarkin, Bruce Dang(Calif), Tommy DeVoss@@thedawgyg(Braze Security Team), Jiyong Yang, Vishal Patidar, Roman Zabicki, Justin O'Leary, Geonha Lee@@leegn4a, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Mihalis Haatainen, Ashish Kunwar, Ari Hawking, 이재영, Chris Bailey - Short Circuit, David Strnadel, hxr1, Seiji Sakurai@@HeapSmasher, Franco Belman at Blackwing Intelligence, genter0(Calif), Svetoslav Stolarov & Aisa Fox(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.), 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), Bhaswanth Chigurupati(STAR Labs SG Pte), Myeonghun Pak, Nathaniel Oh@@calysteon, Alan Banderas@@creeper4004, Yiğit Can YILMAZ@@yilmazcanyigit, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Sindre Sorhus(IES Red Team), Hoffcona(IES Red Team), Hongsik Kim (mnur), Dhiyanesh Selvaraj@@redroot97, John Lussier, Filip Olszak, Owen Pawling@@owenpawling, Gongyu Ma (twitter@@Mezone0, YingMuo@@YingMuo(DEVCORE Research Team), Sindre Sorhus, Zeyang Li&Yuxiang Wang(Chongqing Telecom), Souta Sugiyama, Henock Habte, Viggo Lekdorf, Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), 杉山 壮太, Shubham Chaskar, Dung Do@@_piers2(Calif), Mohit Negi, Myungyong Lee, Kwak Kiyong@@Pwnkai23, Song Nuri, Jian Lee@@speedyfriend433, Stuart Wallace(Totally Not Malicious Software), Ilya Andr (andrd3v)(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), CJ Vana, Daniel Febrero, Asaf Cohen, Gongyu Ma@@Mezone0, Cem Onat Karagun, Zhongcheng Li (CK01), Prashan Samarathunge, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Dawuge(Shuffle Team), Pavan Nallamothu, f00l@@PPPF00L, 3ndy1@@_3ndy1, Minghao Lin@@Y1nkoc, 云散花折, Arjanit Isufi, Kitten Food, Issa Sancho, Ilya Andr (andrd3v)(Positive Technologies), Constantin Clerc(Calif), Shad J(Calif), huami1314@@huamidev(Calif), Huy Nguyen@@34306(Calif), Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, Jasminder Pal Singh, Lehan Dilusha Jayasingha (Sri Lanka), Ilya Andr (andrd3v), AL Najafi, tamdao, Geoffrey Lovelace, Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Morris Richman@@morrisinlife, Tristan Brennan, Rodolphe Brunetti@@eisw0lf(Lupus Nova), Lehan Dilusha Jayasingha, Janggoon Lee(Out of Bounds), OpenAI Codex Security - Amy Burnett, wwwlk, Charles Kern, Seonwook Kim, lattice, Josef Korbel, Thomas Guillem, Niels Hofmans, Josef Korbel (Citadelo), Kun Peeks@@SwayZGl1tZyyy, Tomi Garcia (archyxsec), OGINOME Tomohito, Xint Code, Talal Haj Bakry(Mysk Inc), Tommy Mysk@@mysk_co(Mysk Inc), Shubham Chaskar(Braze Security Team), Bedran Karakoc(Ruhr University Bochum), Tobias Funke(Ruhr University Bochum), Jacopo Clark(Ruhr University Bochum), Katharina Kohls(Ruhr University Bochum)
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.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 27 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 26.6.2 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 26.6.1
Event History
Aug 17, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Aug 18, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Sep 14, 2026
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
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.
- CVE-2026-86882
- CVE-2026-43664
- CVE-2026-84523
- CVE-2026-86888
- CVE-2026-65407
- CVE-2026-65339
- CVE-2026-84583
- CVE-2026-65410
- CVE-2026-84616
- CVE-2026-84607
- CVE-2026-65406
- CVE-2026-65414
- CVE-2026-84560
- CVE-2026-86895
- CVE-2026-86893
- CVE-2026-65344
- CVE-2026-43737
- CVE-2026-84596
- CVE-2026-84575
- CVE-2026-84571
- CVE-2026-84511
- CVE-2026-84612
- CVE-2026-43785
- CVE-2026-84524
- CVE-2026-84597
- CVE-2026-65409
- CVE-2026-84492
- CVE-2026-84533
- CVE-2026-84564
- CVE-2026-65347
- CVE-2026-65346
- CVE-2026-65395
- CVE-2026-28969
- CVE-2026-65398
- CVE-2026-64736
- CVE-2026-64760
- CVE-2026-28968
- CVE-2026-65415
- CVE-2026-65343
- CVE-2026-65349
- CVE-2026-84561
- CVE-2026-84630
- CVE-2026-65360
- CVE-2026-65358
- CVE-2026-65377
- CVE-2026-84622
- CVE-2026-43687
- CVE-2026-43686
- CVE-2026-65405
- CVE-2026-84530
- CVE-2026-65402
- CVE-2026-65359
- CVE-2026-84507
- CVE-2026-86903
- CVE-2026-65330
- CVE-2026-28935
- CVE-2026-84602
- CVE-2026-84628
- CVE-2026-84497
- CVE-2026-84615
- CVE-2026-43695
- CVE-2026-84626
- CVE-2026-84491
- CVE-2026-84629
- CVE-2026-28966
- CVE-2026-84532
- CVE-2026-84487
- CVE-2026-84632
- CVE-2026-84620
- CVE-2026-84546
- CVE-2026-84611
- CVE-2026-84526
- CVE-2026-86881
- CVE-2026-84600
- CVE-2026-86884
- CVE-2026-84609
- CVE-2026-84513
- CVE-2026-84527
- CVE-2026-84635
- CVE-2026-65341
- CVE-2026-64753
- CVE-2026-64715
- CVE-2026-64787
- CVE-2026-43794
- CVE-2026-64778
- CVE-2026-65391
- CVE-2026-65390
- CVE-2026-84636
- CVE-2026-84617
- CVE-2026-84586
- CVE-2026-65399
- CVE-2026-86891
- CVE-2026-86876
- CVE-2026-65412
- CVE-2026-64788
- CVE-2026-86870
- CVE-2026-65403
- CVE-2026-84551
- CVE-2026-84625
- CVE-2026-84603
- CVE-2026-86886
- CVE-2026-86904
- CVE-2026-20683
- CVE-2026-86905
- CVE-2026-64752
- CVE-2026-84624
- CVE-2026-84534
- CVE-2026-84606
- CVE-2026-43689
- CVE-2026-84521
- CVE-2026-86883
- CVE-2026-65411
- CVE-2026-86897
- CVE-2026-86892
- CVE-2026-86887
- CVE-2026-64784
- CVE-2026-43795
- CVE-2026-65338
- CVE-2026-64782
- CVE-2026-64781
- CVE-2026-65351
- CVE-2026-65340
- CVE-2026-65337
- CVE-2026-65336
- CVE-2026-65335
- CVE-2026-65333
- CVE-2026-65332
- CVE-2026-65331
- CVE-2026-64780
- CVE-2026-65334
- CVE-2026-86898
- CVE-2026-64718
- CVE-2026-64779
- CVE-2026-65355
- CVE-2026-65352
- CVE-2026-65329
Frequently Asked Questions
1
How can I determine whether a device has the available fix?
Verify that Safari, iOS, or iPadOS is at version 26.6.1; macOS Tahoe is at 26.6.2; or tvOS, visionOS, or watchOS is at version 27.
2
What attacker-controlled input is identified in the available information?
The available information states that processing maliciously crafted web content may lead to memory corruption.