CVE-2026-20648: Infoleak

Published Feb 11, 2026
·
Updated

A privacy issue was addressed by moving sensitive data to a protected location. This issue is fixed in macOS Sequoia 15.8.2, macOS Tahoe 26.3. A malicious app may be able to access notifications from other iCloud devices.

Other sources

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

— Apple

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

— Apple

Accounts. A logging issue was addressed with improved data redaction.

— Apple

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

— Apple

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

— Apple

Credit

Mickey Jin@@patch1t, jioundai, Amy (amys.website), @@cloudlldb, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Anonymous(Trend Micro Zero Day Initiative), Yiğit Can YILMAZ@@yilmazcanyigit, Golden Helm Securities(Iru), Gergely Kalman@@gergely_kalman(Iru), Csaba Fitzl@@theevilbit(Iru), Gergely Kalman@@gergely_kalman, an anonymous researcher, Google Threat Analysis Group, Kirin@@Pwnrin, Asaf Cohen, Murray Mike, George Karchemsky@@gkarchemsky(Trend Micro Zero Day Initiative), Jian Lee@@speedyfriend433, Keisuke Hosoda, Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan, Srikanth V. Krishnamurthy, Mathy Vanhoef, CVE-2025-59375, Ron Masas(BreakPoint), Chunyu Song(NorthSea), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Noah Gregory (wts.dev), Pwn2car, Enis Maholli (enismaholli.com), CVE-2026-20622, Morris Richman@@morrisinlife, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Gongyu Ma@@Mezone0, LeminLimez, Nathaniel Oh@@calysteon, HanQing(TSDubhe), Nan Wang@@eternalsakura13, Tom Van Goethem, EntryHi, Wang Yu(Cyberserval), Ryan Dowd@@_rdowd, Johnny Franks (zeroxjf), Seiji Sakurai@@HeapSmasher, Bhaswanth Chigurupati, Dave G., We Muftihaturrahmah, Aswin Kumar Gokula Kannan, Ruslan Dautov, Peter Malone, Thomas Guillem, Narendra Singh@@_3P1C, Kwak Kiyong@@Pwnkai23, Song Nuri, Thanatos Tian (HKPolyU) & wgg with Diffract, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Johan Wahyudi, tamdao, Jaeyeong Lee, Meta Red Team X - Nik Tsytsarkin, Hcamael, 章鱼哥 (aipyaipy.com)@@aipy, Dohyeon An Technology Inc@@PILAB, Rahul Raj, Josh Maine(Calif), Chanwit Muenprakoddee (ChemIndy), YingMuo@@YingMuo(DEVCORE Research Team), Paul Montgomery@@nullevent, lunar815, Piotr Jerzy Duszynski, Surej Sekhar, r3pwnx@@r3pwnx, Lily Cohl@@GenericCoding, Lakshay Sharma (MrW0r57), Abodi Dawoud, Marco Schmitt(Calif), Andrey Chernykh(Calif), Franco Belman at Blackwing Intelligence, Murray Mike(Nosebeard Labs), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), 준우 이, Pasquale Scola, Neon, Niels Hofmans, Mustafa Calap@@ordinal0, dbg.re), zenith, Mateusz Jurczyk(Google Project Zero), Tucker Willenborg, Frederick Kaludis (Coiffeur0x90)(Nosebeard Labs), DEVADATH V L, Junyeong Lee (jylab.github.io), Weeraphat Srisutham, Yejun Kim, Zwei Tasse Kaffee, Jihwan Yoon, an anonymous researcher(Calif), 章鱼哥 (aipyaipy.com)@@aipy(Calif), Roman Zabicki(Calif), Anna Groza@@pwnlambda(Calif), Altin Gashi, Përparim Mjeku, f4&Zhiniang Peng with HUST(Calif), Aobo Wang@@M4x_1997(Calif), Xiang Chen(Calif), Jakob Pammer(Calif), 정우 하@@0xfa11babe, Chris Bailey - Short Circuit, Nurihan Kim (HanTul)(TrendAI Zero Day Initiative), Jurre van Bergen - Threatnotify, Mathis Mansière, 章鱼哥 (aipyaipy.com）@@aipy, Redon Gashi (Sentry), Sanny Mitra, Alfredo Pesoli@@__rev(Bynar), Koh M. Nakagawa@@tsunek0h(FFRI Security Inc), Lyutoon, Andrey Chernykh (BypassLabs.ai), oxsignal, Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), R4mbb, f00l@@PPPF00L, 3ndy1@@_3ndy1, Anand (anandsreekumar.com), He Wei (ギカク), powerprove(Protectiv IT Security Inc), Michael Benich(Protectiv IT Security Inc), Niels Hofmans(Protectiv IT Security Inc), Christian Niel Angel(Protectiv IT Security Inc), Lyutoon(SecuRing), Seung Je Seong(SecuRing), R4mbb(SecuRing), Wojciech Regula(SecuRing), Aswin Kumar Gokulakannan, Minseok Kim, Thanatos Tian (HKPolyU) & wgg & xmr, Marco Schmitt, Yash Pandya, Parth Raval, Sattyam Yadav(Protectiv IT Security Inc), onetwo(Protectiv IT Security Inc), Robert Tran, Merrick Hare, Eddy Tsalolikhin, Johann Rehberger, Wout van der Ploeg (woutvanderploeg.nl), sh3rlock (김보겸), Andrey Chernykh, Sihyun Roh (Compsec, SNU), Charles Stevenson, Seung Je Seong, Bhuwan Bhetwal(Braze Security Team), Kwak Kiyong@@Pwnkai23(Braze Security Team), Song Nuri(Braze Security Team), Nicolas Seriot(Braze Security Team), Tommy DeVoss@@thedawgyg(Braze Security Team), Navapon Premkasem, Richard Zana, Pedro Pinho, Frederick Kaludis (Coiffeur0x90)(DBAppSecurity's WeBin lab), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Lakshay Sharma (MrW0r57)/WorstCase Labs.(Iru), Ashish Kavishwar(Iru), Wang Yu, Cem Onat Karagun, John Lussier, greenbynox, OpenAI(STAR Labs SG Pte), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Marc Newlin(SkySafe), Xinru Chi(Pangu Lab), Nebula Security@@nebusecurity(Aginor), Tim Michaud@@TimGMichaud(Aginor), f0r(MurphySec), Arnold Cartagena(Tolmo), Matt Suiche@@msuiche(Tolmo), Jakob Pammer, Jerry L. Knot, Eliya M., Viacheslav Radiukov, Tristan Madani (Talence Security), Daniel Rodríguez, Abodi Dawoud(Lupus Nova), Ilya Andr (andrd3v)(Positive Technologies), Zhongquan Li@@Guluisacat, Mustafa Ahmed, Musaab Khan@@bxff, Saoud Khalifah, stratan@@5tratan, ret2happy@@ret2happy, 진규정 (Gyujeong Jin(DEVCORE Research Team), @@G1uN4sh(DEVCORE Research Team), Lucas Parnell(DEVCORE Research Team), Nathaniel Oh@@calysteon(DEVCORE Research Team), Meta Red Team X - Nik Tsytsarkin(DEVCORE Research Team), Nik Tsytsarkin, Md Rasel Bhuyan (www.linkedin.com/in/rasel-bhuyan), Jonathan Bar Or@@yo_yo_yo_jbo, Varik Matevosyan@@D4RK7ET, Prafull Dhiman, Alto_00000, Siddharth Aeri, Gabriel '0xv1n' Cardona, Mrunal Chawda, Kujtim Kryeziu (Sentry), 도현 김, Ithrael, YEONGJAE SHIN, Hongsik Kim (mnur), Efstratios Kaplanellis@@5tratan(Almamater Technologies), ruitong@@abstract, an anonymous researcher(Nosebeard Labs), Niels Hofmans(Nosebeard Labs), 도현 김(Nosebeard Labs), Junyeong Lee (jylab.github.io)(Nosebeard Labs), Jonghoon Han (Aegis), Ahmad Al Harrizuan Izadin(Iru), Prathamesh Walunj(Iru), f4&Zhiniang Peng with HUST, Geonha Lee@@leegn4a, Substrate, Arni Hardarson (Neonix Security), Yujung Choi@@Dusker, Stefan Esser (Calif), Alfredo Pesoli via Bynario Atlas (bynar.io)@@__rev, Anon Tuttu Venus, Mahmoud Abdelmoniem, koocolb, Stav Nir, Vladimir Tokarev, Arni Hardarson (Neonix Security)(Iru), Pranav Gopalkrishnan, Alan Wang, Ailsa Sun, Hovav Shacham, Riccardo Paccagnella, Chris Fletcher, David Kohlbrenner, Richard Hyunho Im at Route Zero Security@@richeeta(Almamater Technologies), Alex Radocea, cnitlrt@@abstract(Sentry), Roman Belovitskiy(Sentry), Lyutoon(Sentry), Art Pllana(Sentry), Redon Gashi(Sentry), lokerxx, Teodor Sorescu@@teodorsorescu, Phillip Groves, cnitlrt@@abstract, Aditya Kumar, Lucas Lammer, Stuart Wallace, 진규정 (Gyujeong Jin, @@G1uN4sh, Albin Haliti, Sindre Sorhus, Bhuwan Bhetwal(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Nathaniel Oh@@calysteon(Talence Security), Narendra Singh@@_3P1C(Talence Security), Tristan Madani@@TristanInSec(Talence Security), D4rthL, Santiago Albertengo, Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Gergely Kalman@@gergely_kalman(Nosebeard Labs), Lyutoon(Nosebeard Labs), Jaeyeong Lee(Nosebeard Labs), Maher Azzouzi, Frederick Kaludis (Coiffeur0x90), Mufeed VH(Winfunc Research), 云开 江, Joshua Maina, Mahmoud Gamal@@Zombiehelp54, Thanatos Tian (HKPolyU) & wgg & 2st with Diffract(Aginor), Peter Malone(Aginor), David Krehwinkel, Rotce(SkySafe), Sandeep Wawdane (thecybersandeep)(SkySafe), Ankur Saini(Volexity), Song nuri, Ricardo Prado

Affected Software

3 affected componentsFixes available
Apple macOS<26.3
Apple macOS Tahoe<26.3
26.3
Apple macOS Sequoia<15.8.2
15.8.2

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 26.3
  2. Upgrade

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

    Fixed in 15.8.2
  3. Upgrade

    Upgrade macOS Sequoia to a version that resolves this vulnerability.

    Fixed in 15.8.2
  4. Upgrade

    Upgrade macOS Tahoe to a version that resolves this vulnerability.

    Fixed in 26.3

Event History

Feb 11, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
CVE Published
via MITRE·10:59 PM
Data Sourced
via MITRE·10:59 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeaknessAffected Software

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-2026-20648?

The severity of CVE-2026-20648 is medium with a CVSS score of 5.5.

2

How do I fix CVE-2026-20648?

To fix CVE-2026-20648, update to macOS Tahoe 26.3 or later.

3

What does CVE-2026-20648 involve?

CVE-2026-20648 involves a privacy issue where a malicious app may access notifications from other iCloud devices.

4

What products are affected by CVE-2026-20648?

CVE-2026-20648 affects Apple macOS Tahoe and other versions of Apple macOS.

5

What types of vulnerabilities are associated with CVE-2026-20648?

CVE-2026-20648 is associated with infoleak, input validation, integer overflow, race condition, and use after free vulnerabilities.

Company

Resources

Contact

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