CVE-2026-64718: Use After Free

Published Jul 27, 2026
·
Updated

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, visionOS 27, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Other sources

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

— Apple

Accessibility. A privacy issue was addressed with improved handling of user preferences.

— Apple

Accessibility. This issue was addressed through improved state management.

— Apple

Accessibility. This issue was addressed with improved data protection.

— Apple

Accounts Framework. This issue was addressed with improved data protection.

— Apple

Credit

Arni Hardarson, Nathaniel Oh@@calysteon, Kwak Kiyong, Song Nuri, Kagami Rosylight(Mozilla), an anonymous researcher, 杉山 壮太(Z), lattice(Z), Behzad Najjarpour Jabbari@@_G4ru_(Z), Junyeong Lee(Z), Mooth.ai(Z), OGINOME Tomohito(Z), Using GLM(Z), Gia Bui@@yabeow(Calif), Milad Nasr, Nicholas Carlini with Claude, Anthropic, Heiko Kiesel(SEEMOO), TU Darmstadt, Brian Carpenter, OGINOME Tomohito, Shaheen Fazim, Mathis Mansière, Peter Malone, Stuart Wallace, Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), CVE-2026-3784, CVE-2026-3783, HvxyZLF, Lance Cain - Offensive Security Engineer, SpecterOps Inc., Hyunwoo Kim@@v4bel, Gil Portnoy & Henry, Anthony Laou Hine Tsuei@@anarcheuz, Ayaan Ahmad, erdene-och Byambabayar, Niels Hofmans, Manuel Fernandez (Stackhopper Security), Ilya Andr (andrd3v)(Positive Technologies), Stanislav Jelezoglo, Somair Ansar(Calif), Josh Maine(Calif), Johnny Franks@@zeroxjf, hxr1, Alexandre Soleiman, Alexander Tarasikov, Ruslan Dautov, Redon Gashi, Trung Nguyen@@everping(CyStack), Dave G., Nicolas Rabrenovic, Atul R V & Ashmit Sharma, Hcamael, 章鱼哥 （aipyaipy.com）@@aipy, Aswin Kumar Gokulakannan, Surya Narayan Kushwaha, Dun, Richard Zana, Cem Onat Karagun, Tristan Madani@@TristanInSec(Talence Security), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), Jonathan Alush-Aben, 진규정 (Gyujeong Jin, @@G1uN4sh, PETOWORKS의 Bugeun Choi@@Bugeun, Rahul Raj, Geonha Lee@@leegn4a, 이재영, Igor Ushakov, Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Ashish Kunwar, Hiroki Imai (LAC Co., Ltd.), Ryan Hileman via Xint Code (xint.io), f0r(MurphySec), Feng Xue(ThreatBook), XGPT(ThreatBook), Mahmoud Abdelmoniem, Wang Yu, Lyutoon, DARKNAVY@@DarkNavyOrg, Fábio Luís@@scanpt, Adam Doupé(ASU SEFCOM), Pasquale Scola(STAR Labs SG Pte), Gor Aleksanyan, impost0r (ret2plt)(Appknox), Ruslan Dautov(Appknox), Aleksandr Tarasikov(Appknox), jay(Appknox), Dhiyanesh Selvaraj@@redroot97(Appknox), Vinay Kumar Rasala (Xplo8E)(Appknox), Lyutoon(STAR Labs SG Pte), DongJun Kim (smlijun) with UIUC(STAR Labs SG Pte), Hwiwon Lee (hwiwonl) with UIUC(STAR Labs SG Pte), Jongseong Kim (nevul37) with UIUC(STAR Labs SG Pte), Younggi Park (grill66) with UIUC(STAR Labs SG Pte), Peter Malone(STAR Labs SG Pte), an anonymous researcher(STAR Labs SG Pte), Hari Shanmugam (The Hxr1)(STAR Labs SG Pte), Marco Grassi, Daniele Castronovo, Michal Kosiorek, Ruslan Dautov(Baidu Security), 재영 정(Baidu Security), (Rao Ali Nawaz)@@rootxran(Baidu Security), Chanwit Muenprakoddee (ChemIndy)(Baidu Security), an anonymous researcher(Baidu Security), Ye Zhang@@VAR10CK(Baidu Security), Franco Belman at Blackwing Intelligence(Calif), Christian Figueroa(Calif), Johnny Franks@@zeroxjf(Calif), Ashmit Sharma & Atul RV(Calif), Peter Malone(Calif), Muhamad Syaiful(Calif), Muneeb Amin Bhat(Calif), Dhiyanesh Selvaraj@@redroot97(Calif), Ali Marzouq(Calif), Bountyy Oy - Mihalis Haatainen(Calif), Huy Nguyen@@34306(Calif), Eddy Tsalolikhin, beist(ASU SEFCOM), Dun(STAR Labs SG Pte), Asjid Kalam@@odinshell, Abhijeet Singh (linkedin.com/in/abhiunix/), Omar Cerrito, Wang Yu(STAR Labs SG Pte), Ji'an Zhou, Mingxuan Yang, Ye Zhang, Jian Zhou, Calif Research, Ernesto Martínez García, N.M.Praveen Nawarathne@@zblockrat, Lukas Gerlach, CVE-2026-4424, Amy (amys.website), Daniel Febrero, Robert Mindo, He Wei (ギカク)(aipyaipy), 章鱼哥@@aipy(aipyaipy), Jex Amro, Daisuke Hatakeyama Research)@@SYZD, Richard Zana(Nosebeard Labs), yk lin@@pixiepointsec, stratan@@5tratan, wh0am1i, Robert Tran, Mickey Jin@@patch1t, Koh M. Nakagawa@@tsunek0h(FFRI Security Inc), Matej Moravec@@MacejkoMoravec, Sindre Sorhus, Francisco Knabe, Hcamael(Stripe), 章鱼哥 （aipyaipy.com）@@aipy(Stripe), JC Alvarado(Stripe), Jacob Hazak, @@pixiepointsec, Ilya Andr (andrd3v), Asaf Cohen, Junming C.(Chapoly1305), Alfredo Pesoli@@__rev(Bynar), wdszzml, Atuin Automated Vulnerability Discovery Engine, Bob Gendler(the National Institute of Standards), Technology, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Kitten Food, Calif.io in collaboration with Claude, Anthropic Research, Csaba Fitzl@@theevilbit(Iru), Tien-Chih Lin(CyCraft Technology), Bruce Dang(Calif), Zhongcheng Li (CK01), Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, Jasminder Pal Singh, Lehan Dilusha Jayasingha (Sri Lanka), tamdao, Franco Belman at Blackwing Intelligence, Meta Red Team X - Nik Tsytsarkin, Alexandre Borges, Zhongcheng Li(IES Red Team), Tuan D. Hoang, Hazem Issa, Yongdae Kim @ KAIST SysSec Lab, Yongdae Kim @ SysSec, KAIST, CVE-2026-65414, Sindre Sorhus(Positive Technologies), Heiner Gerdes, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Nik Tsytsarkin, Chris Bailey - Short Circuit, Siyeong kim, AL Najafi, Pavan Nallamothu, ret2happy, Meta Product Security, Mustafa Calap@@ordinal0, dbg.re), James Gill @infosec.exchange)@@jjtech, Tommy DeVoss@@thedawgyg(Braze Security Team), flower xu, Adriatik Raci, Daisuke Hatakeyama, Ryohei Ueki Research)@@SYZD, Junyeong Lee (jylab.github.io), Merrick Hare, Aditya Kumar, John Nzyuko Uvyu, Narendra Singh@@_3P1C, Geoffrey Lovelace, Jiyong Yang, Vishal Patidar, Roman Zabicki, Luke Symons, Justin O'Leary, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Mihalis Haatainen, Ari Hawking, David Strnadel, Seiji Sakurai@@HeapSmasher, genter0(Calif), Svetoslav Stolarov & Aisa Fox(Calif), Bernhard Jackiewicz, Bhaswanth Chigurupati, R4mbb(KRsecurity), Vladislav Shevchenko (Positive Technologies), Fábio Luís@@scanpt(STAR Labs SG Pte), Richard Zana(STAR Labs SG Pte), Morris Richman@@morrisinlife, Tristan Brennan, Myeonghun Pak, Alan Banderas@@creeper4004, Matthew Zamat, Rodolphe Brunetti@@eisw0lf(Lupus Nova), Drin Raci(sentry), Yiğit Can YILMAZ@@yilmazcanyigit, Sindre Sorhus(IES Red Team), Hoffcona(IES Red Team), Hongsik Kim (mnur), Bálint Magyar (balintmagyar.com), Issa Sancho, CJ Vana, Gongyu Ma@@Mezone0, Dhiyanesh Selvaraj@@redroot97, John Lussier, Filip Olszak, Meshaal@@unrealmesh, Owen Pawling@@owenpawling, Gongyu Ma (twitter@@Mezone0, Abhay Kailasia@@abhay_kailasia(Safran Mumbai India), YingMuo@@YingMuo(DEVCORE Research Team), Abodi Dawoud, Armend Gashi, Ujjwal Reddy Kalvolu Sreenivasa Reddy, Johan Wahyudi, Lehan Dilusha Jayasingha, Jérôme Djouder, Seung Je Seong(Positive Technologies), Jakob Pammer, Constantin Clerc(Calif), Shad J(Calif), huami1314@@huamidev(Calif), Zeyang Li&Yuxiang Wang(Chongqing Telecom), Bedran Karakoc(Ruhr University Bochum), Tobias Funke(Ruhr University Bochum), Jacopo Clark(Ruhr University Bochum), Katharina Kohls(Ruhr University Bochum), Souta Sugiyama, Viggo Lekdorf, Tomi Garcia (archyxsec), Yusuf Kelany, Jian Lee@@speedyfriend433, Stuart Wallace(Totally Not Malicious Software), Ilya Andr (andrd3v)(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), Arni Hardarson (Neonix Security)(Appknox), Prashan Samarathunge, Nick Cook, Sentry Flag, D4rthL, Ahmed Alwardani, Mohamad Dawoud / Abodi Dawoud, Mr.Gedik@@h4ck2s3c, Mr.Gedik@@h4ck2s3c(Turkish Technology), Kun Peeks@@SwayZGl1tZyyy, Oren Yomtov, Sanny Mitra(Cystack), Sihyun Roh (Compsec(Cystack), SNU)(Cystack), ngockhanh(Cystack), Ataberk Yavuzer, 정우 하@@0xfa11babe, Surej Sekhar, Suresh Sundaram, Hari Shanmugam (The Hxr1), Dawuge(Shuffle Team), Ryan Hughes, Kujtim Kryeziu (Sentry), Yongyue WANG AKA Brian.W(OKX security), Юлия Мерцалова, Aaron Grattafiori - NVIDIA AI Red Team, Joseph Shamoon, Meshaal @ Darkcov, 章鱼哥 (aipyaipy.com）@@aipy, instantraaamen (github.com/instantraaamen) Contact: masa.shiramizu.com@@gmail, Manish Bhatt, Amazon Leo Security, Yurii Bakurov, Ron Masas(BreakPoint), Jonathan Bar Or@@yo_yo_yo_jbo, Arni Hardarson (Neonix Security)(Talence Security), 정우 하, Meta Red Team X, James Young, genter0, James Duffy@@0x4A616D657344, Abhijeet Singh (www.linkedin.com/in/abhiunix/), Stuart Thomas, Mohamed Wedatalla, Arjanit Isufi, Adrián Díaz Aguilar, Dave G.(supernetworks), Alex Radocea(supernetworks), Dmytro Merkulov, silo, Kenneth Chew, Dora Orak, Arbuckle@@Ethan, @@leptos_null, Kieran Klukas (taciturnaxolotl), Liu Xue & 九宫格(Chongqing Telecom), Alfredo Pesoli via Bynario Atlas (bynar.io)@@__rev, 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), Jakob Pammer(Calif), 재영 정(Calif), 재영 정(ThreatBook), Jay Patel, 재영 정, Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), 糖豆爸爸(@晴天组织), Meridian Miftari, Zhongquan Li@@Guluisacat, an anonymous researcher(Iru), Rodolphe Brunetti@@eisw0lf(Iru), Ryan Dowd@@_rdowd(Iru), Isaiah Ryan Ehlert (isaiahehlert.com)@@icloud(Iru), Charlie Weiss, Noah Gregory (wts.dev), Tomi (tk0) Koski@@tomikoski, Kraken Cryptocurrency Exchange, HE WEI（ギカク）(Calif), bubu(Calif), Omar Cerrito(Calif), Roman Zabicki(Calif), Richard Zana(Calif), Chris Bailey - Short Circuit(Calif), Aswin Kumar Gokulakannan(Calif), Surya Narayan Kushwaha(Calif), f00l@@PPPF00L, 3ndy1@@_3ndy1, Minghao Lin@@Y1nkoc, 云散花折, Drinor Selmanaj (Sentry), Ashish Kunwar(Positive Technologies), Mikhail Lozhnikov(Positive Technologies), Bhaswanth Chigurupati(STAR Labs SG Pte), Janggoon Lee(Out of Bounds), OpenAI Codex Security - Amy Burnett, wwwlk, Henock Habte, Charles Kern, Seonwook Kim, Shubham Chaskar, lattice, Josef Korbel, Thomas Guillem, Josef Korbel (Citadelo), Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), 杉山 壮太, Dung Do@@_piers2(Calif), Mohit Negi, Myungyong Lee, Kwak Kiyong@@Pwnkai23, Gandalf4a(PKU), Anton Pakhunov, 이재영(Positive Technologies), Jakob Pammer(Positive Technologies), huami1314@@huamidev, Luke Francis(Z), Francisco Alonso@@revskills(Z), Shubham Chaskar(Z), Jiyong Yang@@Sy2n0(Z), Jorge Welch@@jorgwelch, 章鱼哥.com@@aipyaipy, Irvin Wang(cyberplanet), Peter Malone(cyberplanet), Nicolas Rabrenovic(cyberplanet), Seonung Park, ALTV!ST (altvi.st/), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Daniel Williams, Arni Hardarson (Neonix Security), Anonymous(TrendAI Zero Day Initiative), Huỳnh Tấn Ngàn, Surya Kushwaha, Ashish Kunwar(MurphySec), Johnny Franks@@0xjohnny(Calif), Johnny Franks@@0xjohnny, Tristan Rousseau, Dun(DARKNAVY), deepsec@@DarkNavyOrg(DARKNAVY), 彦辰, RedRays Security Team, Rajdip Dey Sarkar, impost0r (ret2plt), Vladislav Shevchenko (Positive Technologies)(Baidu Security), dr3dd, Gurpreet Shergill, Khai Tran, Rhyru9, Utkarsh Pal(Almamater Technologies), stratan@@5tratan(Almamater Technologies), Josef Korbel (Citadelo)(Talence Security), CVE-2026-43709, Nan Wang@@eternalsakura13, Luke Francis, Soyeon Park(DEVCORE Research Team), Amy Burnett(DEVCORE Research Team), Khai Tran(DEVCORE Research Team), sherkito(DEVCORE Research Team), Kota Toda(DEVCORE Research Team), HexRabbit@@h3xr4bb1t(DEVCORE Research Team), NiNi@@terrynini38514(DEVCORE Research Team), Utkarsh Pal, Ignacio Sanmillan@@ulexec, Kwak Kiyong(Talence Security), Song nuri(Talence Security), Mateusz Krzywicki (iVerify.io)(Braze Security Team), dr3dd(Braze Security Team), Jody Ritonga, Muhamad Syaiful, Behzad Najjarpour Jabbari@@_G4ru_, Vitaly Simonovich, Christian Meurer Xavier, Idan Masas, CVE-2026-28979, Soyeon Park, Amy Burnett, Adam Franke(CyStack), Ashish Kunwar(CyStack), Bartlomiej Dmitruk(striga), Stanislaw Strzalkowski(isec), Pinak Oza, Irvin Wang, David Ige - Beryllium Security, lokerxx(Economics), Narendra Singh@@_3P1C(Economics), Lyutoon(Economics), Jordy Zomer@@pwningsystems(Economics), Richard Zana(Economics), Aswin Kumar Gokulakannan(Economics), George Stergiopoulos(Economics), InfoSec lab(Economics), Athens University(Economics), Business, Greece, Jared Reyes, Gergely Kalman@@gergely_kalman, Kraken Cryptocurrency Exchange(Nosebeard Labs), Matthew Schneider, Dallas Dubs(Nosebeard Labs), Aaron Grattafiori - NVIDIA AI Red Team(Nosebeard Labs), XBreach.ai(Nosebeard Labs), Roman Zabicki(Nosebeard Labs), Katika Mohaseen(Nosebeard Labs), an anonymous researcher(Nosebeard Labs), Mahmoud Abdelmoniem(DBAppSecurity's WeBin lab), Kujtim Kryeziu(DBAppSecurity's WeBin lab), 이재영(Nosebeard Labs), Ilya Andr (andrd3v)(Nosebeard Labs), beist, Aethel-Systems(Chongqing Telecom), Chanwit Muenprakoddee (ChemIndy)(Chongqing Telecom), 九宫格(Chongqing Telecom), Narcis Oliveras Fontàs, Zachary Neal(Stripe), 章鱼哥 (aipyaipy.com)@@aipy(Stripe), He Wei (ギカク)(Cisco Talos), Tien-Chih Lin

Affected Software

19 affected componentsFixes available
Apple WatchOS<26.6
26.6
Apple visionOS<26.6
26.6
Apple tvOS<26.6
26.6
Apple iOS<26.6
26.6
Apple iPadOS<26.6
26.6
Apple macOS Tahoe<26.6
26.6
Apple Safari<26.6
26.6
Apple iOS<27
27
Apple iPadOS<27
27
Apple macOS Golden Gate<27
27
Apple visionOS<27
27
Apple Safari<27
27
Apple Safari<26.6
Apple iPadOS<26.6
Apple iPhone OS<26.6
Apple macOS>=26.0<26.6
Apple tvOS<26.6
Apple visionOS<26.6
Apple WatchOS<26.6

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. Upgrade

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

    Fixed in 27
  3. Upgrade

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

    Fixed in 26.7
  4. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 26.6
  5. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 27
  6. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 26.6
  7. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 26.6
  8. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 26.7
  9. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 26.7
  10. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 27
  11. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 27
  12. Upgrade

    Upgrade macOS Golden Gate to a version that resolves this vulnerability.

    Fixed in 27
  13. Upgrade

    Upgrade macOS Tahoe to a version that resolves this vulnerability.

    Fixed in 26.6
  14. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 26.6
  15. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 26.6
  16. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 27
  17. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 26.6

Event History

Jul 27, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
WeaknessAffected Software
CVE Published
via MITRE·08:12 PM
Data Sourced
via MITRE·08:12 PM
DescriptionWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeaknessAffected Software
Sep 14, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
WeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2026-64718?

CVE-2026-64718 has a medium severity rating of 5.5.

2

How do I fix CVE-2026-64718?

To fix CVE-2026-64718, update your software to Safari 26.6, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6.

3

What type of issue is CVE-2026-64718?

CVE-2026-64718 is a use-after-free vulnerability that leads to improved memory management.

4

What are the potential consequences of CVE-2026-64718?

Exploitation of CVE-2026-64718 may result in an unexpected crash of the Safari browser.

5

On which platforms does CVE-2026-64718 occur?

CVE-2026-64718 affects multiple Apple platforms including Safari, iOS, iPadOS, macOS Tahoe, tvOS, visionOS, and watchOS.

Company

Resources

Contact

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