CVE-2026-39871

highpriority · track · 0EPSS 0.003 · 24 %ileDEEUNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (24th) EPSS

CVSS 7.5 · high

Is it mine?

16 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

A path handling issue was addressed with improved logic. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to observe unprotected user data.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-552US

affected products (16)

Products and version ranges known to be affected.

Apple macOS Sequoia <15.7.7all versionscert_bundDE
Apple macOS Sonoma <14.8.7all versionscert_bundDE
Apple macOS Tahoe <26.5all versionscert_bundDE
Apple macOS≤ Sequoia <15.7.7cert_bundDE
Apple macOS≤ Sonoma <14.8.7cert_bundDE
Apple macOS≤ Tahoe <26.5cert_bundDE
Apple macOS0 → 14.8.7enisa_euvdEU
Apple macOS0 → 15.7.7enisa_euvdEU
Apple macOS0 → 26.5enisa_euvdEU
Apple macOS≤ vers:unknown/*ncsc_nlNL
Apple macOS Sequoia≤ vers:unknown/*ncsc_nlNL
Apple macOS Sonoma≤ vers:unknown/*ncsc_nlNL
Apple macOS Tahoe≤ vers:unknown/*ncsc_nlNL
apple macos14.0 → 14.8.7nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple macos15.0 → 15.7.7nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple macos26.0 → 26.5nvdUScpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0139Kwetsbaarheden verholpen in Apple MacOSNL2026-05-12csaf · ncsc_nlNL
Apple heeft meerdere kwetsbaarheden verholpen in diverse versies van macOS (inclusief Sequoia, Sonoma en Tahoe versies).
WID-SEC-W-2026-1463Apple macOS Sonoma, macOS Sequoia und macOS Tahoe: Mehrere SchwachstellenDeutsch2026-05-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apple macOS Sonoma, macOS Sequoia und macOS Tahoe ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um beliebigen Programmcode auszuführen, und um Sicherheitsvorkehrungen zu umgehen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-05-11modified 2026-10-26

references (8)

External citations — patches, advisories, analysis.

https://nvd.nist.gov/vuln/detail/CVE-2026-39871 cnnvd
https://support.apple.com/en-us/127115Patchcnnvd
https://support.apple.com/en-us/127115 enisa_euvd
https://support.apple.com/en-us/127116 enisa_euvd
https://support.apple.com/en-us/127117 enisa_euvd
https://support.apple.com/en-us/127115Release NotesVendor Advisorynvd
https://support.apple.com/en-us/127116Release NotesVendor Advisorynvd
https://support.apple.com/en-us/127117Release NotesVendor Advisorynvd

scry

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