CVE-2026-64782: Use After Free

Published Aug 17, 2026
·
Updated

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Other sources

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

— Red Hat

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

— Apple

Accessibility. This issue was addressed through improved state management.

— Apple

Accounts. An authorization issue was addressed with improved state management.

— Apple

AirDrop. A reachable assertion was addressed with improved input validation.

— Apple

Credit

Richard Zana(Nosebeard Labs), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Steven Zhao (zhao.io), Tristan Madani@@TristanInSec(Talence Security), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), wh0am1i, stratan@@5tratan, Francisco Knabe, Nik Tsytsarkin, Stanislav Jelezoglo, Alex Radocea, Do Young Park, OpenAI Codex Security - Amy Burnett, wwwlk, Artem Dinaburg(Trail of Bits via Anthropic CVD), Cantina, dr3dd, Tommy DeVoss@@thedawgyg(Braze Security Team), Gurpreet Shergill(Calif), Gia Bui@@yabeow(Calif), Rhyru9, Merrick Hare, Kwak Kiyong, Song Nuri, Khai Tran, John Lussier, Gurpreet Shergill, Drinor Selmanaj (Sentry), Utkarsh Pal, Ignacio Sanmillan@@ulexec, Using GLM(Z), stratan@@5tratan(Almamater Technologies), 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), Brian Carpenter, Milad Nasr, Nicholas Carlini with Claude, Anthropic, Janggoon Lee(Out of Bounds), Mateusz Krzywicki (iVerify.io), Kun Peeks@@SwayZGl1tZyyy, Josef Korbel, Josef Korbel (Citadelo)(Cisco Talos), Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Niels Hofmans, Thomas Guillem, Charles Kern, Shubham Chaskar, Seonwook Kim, lattice, Henock Habte, Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), Jonathan Alush-Aben, Utkarsh Pal(Talence Security), Narendra Singh@@_3P1C(Calif), Josef Korbel (Citadelo)(Calif), Юлия Мерцалова, Dung Do@@_piers2(Calif), Luke Francis, Muhamad Syaiful, Behzad Najjarpour Jabbari@@_G4ru_, Vitaly Simonovich, Christian Meurer Xavier, Aaron Grattafiori - NVIDIA AI Red Team, 杉山 壮太, Josef Korbel(Calif), Mohit Negi, Nan Wang@@eternalsakura13, CVE-2026-28979, Shaheen Fazim, Peter Malone, Mathis Mansière, Stuart Wallace, 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, 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), Josef Korbel (Citadelo), Talal Haj Bakry(Mysk Inc), Tommy Mysk@@mysk_co(Mysk Inc), Shubham Chaskar(Braze Security Team), Myungyong Lee, Kwak Kiyong@@Pwnkai23, Bedran Karakoc(Ruhr University Bochum), Tobias Funke(Ruhr University Bochum), Jacopo Clark(Ruhr University Bochum), Katharina Kohls(Ruhr University Bochum), Arni Hardarson (Neonix Security), Cem Onat Karagun, 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, Ilya Andr (andrd3v), Zhongcheng Li(IES Red Team), Calif.io in collaboration with Claude, Anthropic Research, Ye Zhang@@VAR10CK(Baidu Security), CVE-2026-65414, jioundai, Heiner Gerdes, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Jihwan Yoon, Duc Anh Nguyen & Ta Duc Thien, Chris Bailey - Short Circuit, Siyeong kim, Meta Product Security, AL Najafi, Pavan Nallamothu, ret2happy, Rahul Raj, N.M.Praveen Nawarathne@@zblockrat, James Gill @infosec.exchange)@@jjtech, Junyeong Lee (jylab.github.io), Aditya Kumar, John Nzyuko Uvyu, Narendra Singh@@_3P1C, Geoffrey Lovelace, Bruce Dang(Calif), Jiyong Yang, He Wei (ギカク), Justin O'Leary@@olearysec(olearysec), Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Chanwit Muenprakoddee (ChemIndy), Mihalis Haatainen, Ashish Kunwar, Ari Hawking, 이재영, David Strnadel, Seiji Sakurai@@HeapSmasher, genter0(Calif), Svetoslav Stolarov(Calif), Josh Maine(Calif), Dun, Ryan Hileman via Xint Code (xint.io), Bhaswanth Chigurupati, 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, Sindre Sorhus, Morris Richman@@morrisinlife, Tristan Brennan, Myeonghun Pak, Nathaniel Oh@@calysteon, Alan Banderas@@creeper4004, Rodolphe Brunetti@@eisw0lf(Lupus Nova), Yiğit Can YILMAZ@@yilmazcanyigit, 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, 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), Souta Sugiyama, Viggo Lekdorf, Tomi Garcia (archyxsec), Kwak Kiyong / kakaogames, Junhyuk Im(S2W Inc), Seungyun Lee(S2W Inc), OGINOME Tomohito, Efstratios Kaplanellis@@5tratan(Almamater Technologies), Jakob Pammer, Drin Raci(sentry), Jian Lee@@speedyfriend433, Seonung Park, ALTV!ST (altvi.st/), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Daniel Febrero, Daniel Williams, Anonymous(TrendAI Zero Day Initiative), James Duffy@@0x4A616D657344, CVE-2026-3784, CVE-2026-3783, Huỳnh Tấn Ngàn, Manuel Fernandez (Stackhopper Security), Stanislav Jelezoglo(Positive Technologies), Redon Gashi, Arni Hardarson, Jiri Ha, Gandalf4a(PKU), Anton Pakhunov, Richard Zana, hxr1(STAR Labs SG Pte), Hiroki Imai (LAC Co.(STAR Labs SG Pte), Ltd.)(STAR Labs SG Pte), Ashish Kunwar(MurphySec), Mahmoud Abdelmoniem(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Wang Yu, Nicolas Rabrenovic, Lyutoon, Fábio Luís@@scanpt, DARKNAVY@@DarkNavyOrg, Gor Aleksanyan, Michal Kosiorek, Eddy Tsalolikhin, Asjid Kalam@@odinshell, impost0r (ret2plt), Hyunwoo Kim@@v4bel, Hyunwoo Kim@@v4bel(ThreatBook), Lukas Gerlach, Wang Yu(STAR Labs SG Pte), Ernesto Martínez García, Calif Research, Ji'an Zhou, Mingxuan Yang, Ye Zhang, Vladislav Shevchenko (Positive Technologies)(STAR Labs SG Pte), Pasquale Scola(STAR Labs SG Pte), CVE-2026-4424, Robert Mindo, Daisuke Hatakeyama Research)@@SYZD, Peter Malone(cyberplanet), Nicolas Rabrenovic(cyberplanet), Irvin Wang(cyberplanet), Jorge Welch@@jorgwelch, 이재영(Appknox), Vinay Kumar Rasala (Xplo8E)(Appknox), Arash Ale Ebrahim(SCy)

Affected Software

15 affected componentsFixes available
Apple iOS<18.7.10
18.7.10
Apple iPadOS<18.7.10
18.7.10
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<18.7.10
Apple iPadOS>=26.0<26.6.1
Apple iPhone OS<18.7.10
Apple iPhone OS>=26.0<26.6.1
Apple macOS>=26.0<26.6.2
Apple visionOS<27
27
debian/webkit2gtk<=2.50.6-1~deb12u2, <=2.50.6-1~deb12u1, <=2.52.6-1~deb13u1, <=2.52.6-1
2.54.0-1~deb13u32.54.2-2
debian/wpewebkit<=2.38.6-1, <=2.48.3-1
2.54.2-1

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 18.7.10
  2. Upgrade

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

    Fixed in 26.6.2
  3. Upgrade

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

    Fixed in 26.6.1
  4. Upgrade

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

    Fixed in 27
  5. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.54.0-1~deb13u3Fixed in 2.54.2-2
  6. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.54.2-1
  7. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 26.6.1
  8. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 18.7.10
  9. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 18.7.10
  10. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 26.6.1
  11. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 26.6.1
  12. Upgrade

    Upgrade macOS Tahoe to a version that resolves this vulnerability.

    Fixed in 26.6.2
  13. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 27
  14. Compensating control

    Use HTTPS when sending information over the network.

Event History

Aug 17, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
CVE Published
via MITRE·09:31 PM
Data Sourced
via MITRE·09:31 PM
DescriptionWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeaknessAffected Software
Aug 26, 2026
Data Sourced
via Red Hat·05:14 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What conditions are required for exploitation?

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

2

What is the expected impact if exploitation succeeds?

The documented impact is an unexpected Safari crash. The CVSS vector assigns no confidentiality or integrity impact and a low availability impact.

3

Which releases contain the fix?

The issue is fixed in Safari 26.6.1; iOS and iPadOS 18.7.10; iOS and iPadOS 26.6.1; and macOS Tahoe 26.6.2.

Company

Resources

Contact

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