CVE-2026-28944: Buffer Overflow

Published May 11, 2026
·
Updated

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

Other sources

Accounts. A permissions issue was addressed with additional restrictions.

— Apple

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

— Apple

App Intents. A logic issue was addressed with improved restrictions.

— Apple

AppleJPEG. A memory corruption issue was addressed with improved input validation.

— Apple

AppleJPEG. 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

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), Jorge Welch, Adriatik Raci, Abhay Kailasia@@abhay_kailasia(Safran Mumbai India), Seiji Sakurai@@HeapSmasher, Dave G., Vamshi Paili, Tony Gorez for Reverse Society@@tonygo_, CVE-2026-1837, impost0r (ret2plt), David Ige(Beryllium Security), Alan Wang, Christopher W. Fletcher, Hovav Shacham, David Kohlbrenner, Riccardo Paccagnella, Niels Hofmans(TrendAI Zero Day Initiative), Suresh Sundaram, Jiri Ha, Arni Hardarson, Johnny Franks@@zeroxjf, Mihalis Haatainen, Ari Hawking, Ashish Kunwar, Google Threat Analysis Group, Somair Ansar, Kun Peeks@@SwayZGl1tZyyy, Aswin Kumar Gokula Kannan, wdszzml, Atuin Automated Vulnerability Discovery Engine

Affected Software

9 affected componentsFixes available
Apple macOS Tahoe<26.5
26.5
Apple iOS<26.5
26.5
Apple iPadOS<26.5
26.5
Apple visionOS<26.5
26.5
Apple iPadOS<26.5
Apple iPhone OS<26.5
Apple macOS>=26.0<26.5
Apple visionOS<26.5
Apple Safari<26.5
26.5

Event History

May 11, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
CVE Published
via MITRE·08:08 PM
Data Sourced
via MITRE·08:08 PM
DescriptionWeakness
Data Sourced
via NVD·09:18 PM
DescriptionSeverityWeaknessAffected Software
May 13, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected 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-2026-28944?

CVE-2026-28944 has been classified as a high-severity vulnerability due to the potential for exploitation through out-of-bounds read and buffer overflow vulnerabilities.

2

How do I fix CVE-2026-28944?

To fix CVE-2026-28944, update your affected Apple devices to the recommended versions 26.5 or higher.

3

What products are affected by CVE-2026-28944?

CVE-2026-28944 affects Apple macOS Tahoe, iOS, iPadOS, visionOS, and Safari versions prior to 26.5.

4

What types of vulnerabilities does CVE-2026-28944 address?

CVE-2026-28944 addresses vulnerabilities related to out-of-bounds read, buffer overflow, and permissions issues across various Apple software.

5

Is it safe to use devices with CVE-2026-28944 before updating?

Using devices with CVE-2026-28944 before applying the update may pose security risks due to the potential for exploitation.

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