CVE-2026-28961: Buffer Overflow

Published May 11, 2026
·
Updated

Accelerate. An out-of-bounds read was addressed with improved bounds checking.

Other sources

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

— Apple

Accounts. A permissions issue was addressed with additional restrictions.

— Apple

afpfs. A buffer overflow was addressed with improved bounds checking.

— Apple

apache. This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org.

— Apple

APFS. A buffer overflow was addressed with improved bounds checking.

— Apple

Credit

Vaagn Vardanian, Nathaniel Oh@@calysteon, beist, Yiğit Can YILMAZ@@yilmazcanyigit, popku1337(STAR Labs SG Pte), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Robert Tran, Aswin kumar Gokulakannan, Calif.io in collaboration with Claude, Anthropic Research, Csaba Fitzl@@theevilbit(Iru), Ryan Hileman via Xint Code (xint.io), Chris Betz(Talence Security), Tristan Madani@@TristanInSec(Talence Security), Dhiyanesh Selvaraj@@redroot97, Ruslan Dautov, Atul R V, Omar Cerrito, Anton Pakhunov, Ricardo Prado, Ian van der Wurff (ian.nl), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), Dan Raviv, Ilya Sc. Jowell A., Peter Malone, Asaf Cohen, Doron Assness, Peter Malone(Supernetworks), Dave G.(Supernetworks), Alex Radocea(Supernetworks), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Andy Koo@@andykoo(Hexens), Alex Radocea, Amy (amys.website), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), an anonymous researcher, David Ige - Beryllium Security, Cantina, Luke Francis, kwak kiyong / kakaogames, Vitaly Simonovich, Adel Bouachraoui, greenbynox, Do Young Park, Yuhao Hu, Yuanming Lai, Chenggang Wu, Zhe Wang, DARKNAVY@@DarkNavyOrg(TrendAI Zero Day Initiative), Anonymous(TrendAI Zero Day Initiative), Daniel Rhea, Luka Rački, wac(TrendAI Zero Day Initiative), Kookhwan Lee(TrendAI Zero Day Initiative), Mateusz Krzywicki (iVerify.io), Maher Azzouzi, Aisle offensive security research team (Joshua Rogers(Calif), Luigino Camastra(Calif), Igor Morgenstern(Calif), (Calif), Guido Vranken)(Calif), Maher Azzouzi(Calif), Ngan Nguyen(Calif), dr3dd, Gia Bui@@yabeow(Calif), w0wbox, Milad Nasr, Nicholas Carlini with Claude, Anthropic, Khiem Tran, Kenneth Hsu(Palo Alto Networks), Jérôme DJOUDER, Wang Yu, Brendon Tiszka(Google Project Zero), Vamshi Paili, Tony Gorez for Reverse Society@@tonygo_, CVE-2026-1837, impost0r (ret2plt), David Ige(Beryllium Security), Arni Hardarson, Niels Hofmans(TrendAI Zero Day Initiative), Kun Peeks@@SwayZGl1tZyyy, Aswin Kumar Gokula Kannan, Dave G., Suresh Sundaram, Jiri Ha, wdszzml, Atuin Automated Vulnerability Discovery Engine, Johnny Franks@@zeroxjf, Google Threat Analysis Group, Mihalis Haatainen, Ari Hawking, Ashish Kunwar, Somair Ansar, Seiji Sakurai@@HeapSmasher, Юлия Мерцалова, Rahul Raj, Pinak Oza, Robert Mindo, tamdao, Franco Belman at Blackwing Intelligence, Nicolas Rabrenovic, Irvin Wang, 이재영, Pavan Nallamothu, Jared Reyes, John Lussier, Seonung Park, ALTV!ST (altvi.st/), Dun, Richard Zana, Daniel Williams, Gergely Kalman@@gergely_kalman, Mathis Mansière, James Duffy@@0x4A616D657344, Matthew Schneider, XBreach.ai(Nosebeard Labs), Dallas Dubs(Nosebeard Labs), Aaron Grattafiori - NVIDIA AI Red Team, CVE-2026-3784, CVE-2026-3783, HvxyZLF, Lance Cain - Offensive Security Engineer, SpecterOps Inc., Jonathan Bar Or@@yo_yo_yo_jbo, Anthony Laou Hine Tsuei@@anarcheuz, Gil Portnoy & Henry, Ayaan Ahmad, Hyunwoo Kim@@v4bel, erdene-och Byambabayar, Niels Hofmans, Manuel Fernandez (Stackhopper Security), Stanislav Jelezoglo(Positive Technologies), Ilya Andr (andrd3v)(Positive Technologies), Redon Gashi, Trung Nguyen@@everping(CyStack), Atul R V & Ashmit Sharma, Hcamael, 章鱼哥 （aipyaipy.com）@@aipy, Aswin Kumar Gokulakannan, Surya Narayan Kushwaha, Cem Onat Karagun, Jonathan Alush-Aben, Gandalf4a(PKU), PETOWORKS의 Bugeun Choi@@Bugeun, Geonha Lee@@leegn4a, hxr1(STAR Labs SG Pte), Hiroki Imai (LAC Co.(STAR Labs SG Pte), Ltd.)(STAR Labs SG Pte), Igor Ushakov, Adam Doupé(ASU SEFCOM), f0r(MurphySec), Mahmoud Abdelmoniem(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Lyutoon, Hiroki Imai (LAC Co., Ltd.), Fábio Luís@@scanpt, DARKNAVY@@DarkNavyOrg, Gor Aleksanyan, Michal Kosiorek, Eddy Tsalolikhin, Asjid Kalam@@odinshell, Hyunwoo Kim@@v4bel(ThreatBook), Wang Yu(STAR Labs SG Pte), Ernesto Martínez García, Calif Research, Ji'an Zhou, Mingxuan Yang, Ye Zhang, Ye Zhang@@VAR10CK(Baidu Security), Vladislav Shevchenko (Positive Technologies)(STAR Labs SG Pte), Pasquale Scola(STAR Labs SG Pte), Lukas Gerlach, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), CVE-2026-4424, Prathamesh Walunj, Daisuke Hatakeyama Research)@@SYZD, Richard Zana(Nosebeard Labs), wh0am1i, stratan@@5tratan, 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, Junming C.(Chapoly1305), Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Kitten Food, Tien-Chih Lin(CyCraft Technology), Bruce Dang(Calif), Adam Franke(CyStack), yk lin@@pixiepointsec, wdszzml(Bynar), Atuin Automated Vulnerability Discovery Engine(Bynar), Alfredo Pesoli@@__rev(Bynar)

Affected Software

4 affected componentsFixes available
Apple macOS Tahoe<26.5
26.5
Apple macOS>=26.0<26.5
Apple macOS Sequoia<15.7.8
15.7.8
Apple macOS Sonoma<14.8.8
14.8.8

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 26.5
  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

Event History

May 11, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
CVE Published
via MITRE·08:08 PM
Data Sourced
via MITRE·08:08 PM
DescriptionWeakness
Data Sourced
via NVD·09:18 PM
DescriptionSeverityWeaknessAffected Software
Jul 27, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Updated
via Apple·12:00 AM
WeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-28961?

CVE-2026-28961 has a medium severity rating of 4.6 according to the CVSS 3.1 system.

2

What types of vulnerabilities are related to CVE-2026-28961?

CVE-2026-28961 relates to various vulnerabilities including buffer overflow, input validation issues, and race conditions.

3

How do I fix CVE-2026-28961?

To address CVE-2026-28961, update to the latest version of macOS Tahoe or apply any relevant patches provided by Apple.

4

What software is affected by CVE-2026-28961?

CVE-2026-28961 affects Apple macOS Tahoe and other versions of Apple macOS.

5

When was CVE-2026-28961 published?

CVE-2026-28961 was published on May 11, 2026.

Company

Resources

Contact

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