CVE-2026-43793: Input Validation
Published Jul 27, 2026
·Updated
Accounts Framework. This issue was addressed with improved data protection.
Other sources
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
afpfs. A buffer overflow was addressed with improved bounds checking.
— Apple
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
— MITRE
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, Adam Franke(CyStack), Ashish Kunwar(CyStack), Rosyna Keller(Totally Not Malicious Software), Bartlomiej Dmitruk(striga), Stanislaw Strzalkowski(isec), Narendra Singh@@_3P1C, Pinak Oza, 章鱼哥.com@@aipyaipy, Chris Bailey - Short Circuit, Stuart Wallace, Vladislav Shevchenko (Positive Technologies), tamdao, Franco Belman at Blackwing Intelligence, Rishabh Jain (rjcyber)(cyberplanet), 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, Pavan Nallamothu, Jared Reyes, John Lussier, Seonung Park, ALTV!ST (altvi.st/), David Strnadel, YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Anton Pakhunov, Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Daniel Williams, Arni Hardarson (Neonix Security), Gergely Kalman@@gergely_kalman, Anonymous(TrendAI Zero Day Initiative), ret2happy, Rajdip Dey Sarkar, James Duffy@@0x4A616D657344, Kraken Cryptocurrency Exchange(Nosebeard Labs), Matthew Schneider, Dallas Dubs(Nosebeard Labs), Aaron Grattafiori - NVIDIA AI Red Team(Nosebeard Labs), XBreach.ai(Nosebeard Labs), Yongyue WANG AKA Brian.W(OKX security), Roman Zabicki(Nosebeard Labs), Katika Mohaseen(Nosebeard Labs), an anonymous researcher(Nosebeard Labs), Tommy DeVoss@@thedawgyg(Braze Security Team), 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), YingMuo@@YingMuo(DEVCORE Research Team), 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), Nik Tsytsarkin, 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, Jonathan Bar Or@@yo_yo_yo_jbo, Stanislav Jelezoglo(Positive Technologies), Gandalf4a(PKU), Dhiyanesh Selvaraj@@redroot97, 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, Aaron Grattafiori - NVIDIA AI Red Team, Pyrophoria, Estifanos Megersa, Ahmed Uddin, silo, wdszzml(Bynar), Atuin Automated Vulnerability Discovery Engine(Bynar)
Affected Software
6 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>=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.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 26.6 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 15.7.8 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 14.8.8
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
DescriptionAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description
CVE Published
via MITRE·08:13 PM
Data Sourced
via MITRE·08:13 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-2026-43819
- CVE-2026-43749
- CVE-2026-64733
- CVE-2026-64767
- CVE-2026-23918
- CVE-2026-64695
- CVE-2026-43801
- CVE-2026-43781
- CVE-2026-64737
- CVE-2026-43748
- CVE-2026-28928
- CVE-2026-43776
- CVE-2026-43681
- CVE-2026-43672
- CVE-2026-43763
- CVE-2026-64702
- CVE-2026-64725
- CVE-2026-43730
- CVE-2026-64747
- CVE-2026-64762
- CVE-2026-64707
- CVE-2026-64698
- CVE-2026-43813
- CVE-2026-64746
- CVE-2026-64734
- CVE-2026-43797
- CVE-2026-43756
- CVE-2026-43693
- CVE-2026-43673
- CVE-2026-43744
- CVE-2026-43803
- CVE-2026-43775
- CVE-2026-43759
- CVE-2026-43711
- CVE-2026-43802
- CVE-2026-64710
- CVE-2026-39875
- CVE-2026-43698
- CVE-2026-3784
- CVE-2026-3783
- CVE-2026-43758
- CVE-2026-64708
- CVE-2026-64776
- CVE-2026-64694
- CVE-2026-43747
- CVE-2026-28945
- CVE-2026-43793
- CVE-2026-43753
- CVE-2026-43714
- CVE-2026-64740
- CVE-2026-43796
- CVE-2026-64691
- CVE-2026-64692
- CVE-2026-43682
- CVE-2026-28981
- CVE-2026-43773
- CVE-2026-43767
- CVE-2026-43764
- CVE-2026-64697
- CVE-2026-43710
- CVE-2026-43780
- CVE-2026-43818
- CVE-2026-64716
- CVE-2026-64758
- CVE-2026-64754
- CVE-2026-64693
- CVE-2026-43805
- CVE-2026-43782
- CVE-2026-64749
- CVE-2026-64744
- CVE-2026-43778
- CVE-2026-28982
- CVE-2026-64709
- CVE-2026-64735
- CVE-2026-43739
- CVE-2026-43816
- CVE-2026-43822
- CVE-2026-64729
- CVE-2026-43814
- CVE-2026-64700
- CVE-2026-43799
- CVE-2026-28931
- CVE-2026-43817
- CVE-2026-43809
- CVE-2026-43757
- CVE-2026-43769
- CVE-2026-64727
- CVE-2026-43810
- CVE-2026-64775
- CVE-2026-64723
- CVE-2026-64720
- CVE-2026-43754
- CVE-2026-64751
- CVE-2026-64721
- CVE-2026-4424
- CVE-2026-28973
- CVE-2026-64739
- CVE-2026-43766
- CVE-2026-64743
- CVE-2026-64738
- CVE-2026-43806
- CVE-2026-64724
- CVE-2026-43723
- CVE-2026-28911
- CVE-2026-43733
- CVE-2026-43729
- CVE-2026-64772
- CVE-2026-64771
- CVE-2026-64722
- CVE-2026-64774
- CVE-2026-64770
- CVE-2026-64769
- CVE-2026-64768
- CVE-2026-43771
- CVE-2026-43772
- CVE-2026-64711
- CVE-2026-28912
- CVE-2026-43765
- CVE-2026-64731
- CVE-2026-43812
- CVE-2026-43694
- CVE-2026-39874
- CVE-2026-43792
- CVE-2026-64766
- CVE-2026-64765
- CVE-2026-64764
- CVE-2026-64763
- CVE-2026-43779
- CVE-2026-43777
- CVE-2026-43760
- CVE-2026-43728
- CVE-2026-43755
- CVE-2026-64745
- CVE-2026-43800
- CVE-2026-39873
- CVE-2026-64696
- CVE-2026-64704
- CVE-2026-43774
- CVE-2026-43770
- CVE-2026-43768
- CVE-2026-64703
- CVE-2026-64699
- CVE-2026-43740
- CVE-2026-64713
- CVE-2026-64730
- CVE-2026-64728
- CVE-2026-64783
- CVE-2026-64757
- CVE-2026-43804
- CVE-2026-43821
- CVE-2026-64718
- CVE-2026-64719
- CVE-2026-64726
- CVE-2026-43750
- CVE-2026-28932
- CVE-2026-43815
- CVE-2026-65353
- CVE-2026-65407
- CVE-2026-43761
- CVE-2026-43702
- CVE-2026-28899
- CVE-2026-64701
- CVE-2026-43783
- CVE-2026-64705
- CVE-2026-65357
- CVE-2026-65371
- CVE-2026-43808
- CVE-2026-64717
- CVE-2026-28933
- CVE-2026-43762
- CVE-2026-84562
- CVE-2026-65375
- CVE-2026-65404
- CVE-2026-28849
- CVE-2026-28936
- CVE-2026-43738
- CVE-2026-84489
- CVE-2025-14017
- CVE-2025-14819
- CVE-2026-28926
- CVE-2025-43325
- CVE-2026-43661
- CVE-2026-64714
- CVE-2026-39877
- CVE-2026-43724
- CVE-2026-43722
- CVE-2026-39868
- CVE-2026-20672
- CVE-2026-28983
- CVE-2026-28900
- CVE-2026-43703
- CVE-2026-43706
- CVE-2026-43653
- CVE-2026-43807
- CVE-2026-28961
- CVE-2026-28896
- CVE-2026-43665
- CVE-2026-28914
- CVE-2026-28836
- CVE-2026-86902
Frequently Asked Questions
1
What is the severity of CVE-2026-43793?
The severity of CVE-2026-43793 is rated at 86, indicating a high-risk vulnerability.
2
What types of issues does CVE-2026-43793 address?
CVE-2026-43793 addresses buffer overflows, race conditions, use-after-free vulnerabilities, input validation problems, and integer overflows.
3
How do I fix CVE-2026-43793?
To fix CVE-2026-43793, update your Apple macOS to the latest version that includes the security patches addressing this vulnerability.
4
Which versions of macOS are affected by CVE-2026-43793?
CVE-2026-43793 affects Apple macOS Tahoe, Sequoia, and Sonoma.
5
What mitigation strategies are recommended for CVE-2026-43793?
Mitigation strategies for CVE-2026-43793 include applying security updates and ensuring additional sandbox restrictions are in place.