CVE-2026-43698: Buffer Overflow

Published Jul 27, 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 Framework. This issue was addressed with improved data protection.

— Apple

Accounts. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

Accounts. An access issue was addressed with additional sandbox restrictions.

— Apple

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

— Apple

Credit

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, an anonymous researcher, 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, Peter Malone, 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), Arni Hardarson, 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, Nathaniel Oh@@calysteon, 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), Kwak Kiyong, Song Nuri, Kagami Rosylight(Mozilla), 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, Stuart Wallace(Totally Not Malicious Software), Ilya Andr (andrd3v)(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), CJ Vana, David Strnadel, Gongyu Ma@@Mezone0, Jian Lee@@speedyfriend433, Arni Hardarson (Neonix Security)(Appknox), Stuart Wallace, Zhongcheng Li (CK01), Prashan Samarathunge, Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, Jasminder Pal Singh, Lehan Dilusha Jayasingha (Sri Lanka), Nick Cook, Sentry Flag, tamdao, Franco Belman at Blackwing Intelligence, D4rthL, Ahmed Alwardani, Mohamad Dawoud / Abodi Dawoud, Zhongcheng Li(IES Red Team), Mr.Gedik@@h4ck2s3c, Mr.Gedik@@h4ck2s3c(Turkish Technology), Kun Peeks@@SwayZGl1tZyyy, Oren Yomtov, Morris Richman@@morrisinlife, CVE-2026-65414, Sanny Mitra(Cystack), Sihyun Roh (Compsec(Cystack), SNU)(Cystack), ngockhanh(Cystack), Ataberk Yavuzer, 정우 하@@0xfa11babe, Surej Sekhar, Suresh Sundaram, Hari Shanmugam (The Hxr1), Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Dawuge(Shuffle Team), Nik Tsytsarkin, Chris Bailey - Short Circuit, Siyeong kim, AL Najafi, Ryan Hughes, Kujtim Kryeziu (Sentry), Pavan Nallamothu, ret2happy, Meta Product Security, Mustafa Calap@@ordinal0, dbg.re), 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, James Gill @infosec.exchange)@@jjtech, Tommy DeVoss@@thedawgyg(Braze Security Team), flower xu, Adriatik Raci, Daisuke Hatakeyama, Ryohei Ueki Research)@@SYZD, Manish Bhatt, Amazon Leo Security, Meta Red Team X - Nik Tsytsarkin, Junyeong Lee (jylab.github.io), Merrick Hare, Aditya Kumar, John Nzyuko Uvyu, Narendra Singh@@_3P1C, Geoffrey Lovelace, Yurii Bakurov, Ron Masas(BreakPoint), Luke Symons, Jiyong Yang, Vishal Patidar, Roman Zabicki, Jonathan Bar Or@@yo_yo_yo_jbo, Arni Hardarson (Neonix Security)(Talence Security), 정우 하, Justin O'Leary, Meta Red Team X, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Mihalis Haatainen, Ari Hawking, Seiji Sakurai@@HeapSmasher, genter0(Calif), Svetoslav Stolarov & Aisa Fox(Calif), Bernhard Jackiewicz, Bhaswanth Chigurupati, James Young, genter0, James Duffy@@0x4A616D657344, Abhijeet Singh (www.linkedin.com/in/abhiunix/), R4mbb(KRsecurity), Stuart Thomas, Vladislav Shevchenko (Positive Technologies), Fábio Luís@@scanpt(STAR Labs SG Pte), Richard Zana(STAR Labs SG Pte), Mohamed Wedatalla, Arjanit Isufi, Adrián Díaz Aguilar, Dave G.(supernetworks), Alex Radocea(supernetworks), Armend Gashi, Myeonghun Pak, Alan Banderas@@creeper4004, Matthew Zamat, Yiğit Can YILMAZ@@yilmazcanyigit, Dmytro Merkulov, Sindre Sorhus(IES Red Team), Hoffcona(IES Red Team), silo, Kenneth Chew, Dora Orak, Arbuckle@@Ethan, @@leptos_null, Hongsik Kim (mnur), Bálint Magyar (balintmagyar.com), Kieran Klukas (taciturnaxolotl), Liu Xue & 九宫格(Chongqing Telecom), Issa Sancho, Dhiyanesh Selvaraj@@redroot97, 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), John Lussier, Filip Olszak, Meshaal@@unrealmesh, Owen Pawling@@owenpawling, Gongyu Ma (twitter@@Mezone0, Jakob Pammer(Calif), 재영 정(Calif), 재영 정(ThreatBook), Jay Patel, 재영 정, YingMuo@@YingMuo(DEVCORE Research Team), Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Abodi Dawoud, 糖豆爸爸(@晴天组织), Ujjwal Reddy Kalvolu Sreenivasa Reddy, Johan Wahyudi, Jérôme Djouder, Seung Je Seong(Positive Technologies), Jakob Pammer, Meridian Miftari, Zhongquan Li@@Guluisacat, Zeyang Li&Yuxiang Wang(Chongqing Telecom), 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), Souta Sugiyama, Viggo Lekdorf, Tomi Garcia (archyxsec), Jared Reyes, Kraken Cryptocurrency Exchange(Nosebeard Labs), Manish Bhatt(Nosebeard Labs), Amazon Leo Security(Nosebeard Labs), Nathaniel Oh@@calysteon(Nosebeard Labs), Jonathan Bar Or@@yo_yo_yo_jbo(ThreatBook), Peter Malone(ThreatBook), 이재영(Positive Technologies), Jakob Pammer(Positive Technologies), He Wei（ギカク)(Calif), Adam Franke(CyStack), Ashish Kunwar(CyStack), Bartlomiej Dmitruk(striga), Stanislaw Strzalkowski(isec), Pinak Oza, 章鱼哥.com@@aipyaipy, Irvin Wang, impost0r (ret2plt), 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, Seonung Park, ALTV!ST (altvi.st/), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Anton Pakhunov, Daniel Williams, Arni Hardarson (Neonix Security), Gergely Kalman@@gergely_kalman, Anonymous(TrendAI Zero Day Initiative), Rajdip Dey Sarkar, 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, Johnny Franks@@0xjohnny, Surya Kushwaha, Ashish Kunwar(MurphySec), Johnny Franks@@0xjohnny(Calif), Tristan Rousseau, Dun(DARKNAVY), deepsec@@DarkNavyOrg(DARKNAVY), 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), RedRays Security Team, He Wei (ギカク)(Cisco Talos), Tien-Chih Lin, Luke Francis(Z), Francisco Alonso@@revskills(Z), Shubham Chaskar(Z), Jiyong Yang@@Sy2n0(Z), 이재영(Appknox), Peter Malone(cyberplanet), Nicolas Rabrenovic(cyberplanet), Irvin Wang(cyberplanet), CVE-2025-14017, CVE-2025-14819, Stanislav Jelezoglo(Positive Technologies), Gandalf4a(PKU), hxr1(STAR Labs SG Pte), Hiroki Imai (LAC Co.(STAR Labs SG Pte), Ltd.)(STAR Labs SG Pte), Mahmoud Abdelmoniem(ThreatBook), Hyunwoo Kim@@v4bel(ThreatBook), Vladislav Shevchenko (Positive Technologies)(STAR Labs SG Pte), Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Prathamesh Walunj@@attahasa, Atul R V, Dan Raviv, Chanwit Muenprakoddee (ChemIndy), Aethel-Systems, Pyrophoria, Estifanos Megersa, Ahmed Uddin, wdszzml(Bynar), Atuin Automated Vulnerability Discovery Engine(Bynar)

Affected Software

7 affected componentsFixes available
Apple macOS Tahoe<26.6
26.6
Apple macOS Sequoia<15.7.8
15.7.8
Apple macOS Sonoma<14.8.8
14.8.8
Apple macOS Golden Gate<27
27
Apple macOS>=14.0<14.8.8
Apple macOS>=15.0<15.7.8
Apple macOS>=26.0<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 15.7.8
  3. Upgrade

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

    Fixed in 14.8.8
  4. Upgrade

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

    Fixed in 27
  5. Upgrade

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

    Fixed in 26.7

Event History

Jul 27, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Description
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
DescriptionAffected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
CVE Published
via MITRE·08:13 PM
Data Sourced
via MITRE·08:13 PM
DescriptionWeakness
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeaknessAffected Software
Sep 14, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description

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-2026-43698?

The severity of CVE-2026-43698 is classified as high with a CVSS score of 7.8.

2

How do I fix CVE-2026-43698?

To fix CVE-2026-43698, ensure that you update to the latest version of Apple macOS Tahoe, Sequoia, or Sonoma.

3

What types of vulnerabilities are involved in CVE-2026-43698?

CVE-2026-43698 involves vulnerabilities such as buffer overflow, race condition, and use after free.

4

Which software versions are affected by CVE-2026-43698?

CVE-2026-43698 affects Apple macOS Tahoe, Sequoia, and Sonoma.

5

What issues were addressed in CVE-2026-43698?

CVE-2026-43698 addressed issues related to improved data protection, directory path parsing, and additional sandbox restrictions.

Company

Resources

Contact

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