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PatchSiren cyber security CVE debrief

CVE-2026-84626 Apple CVE debrief

An information disclosure issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to identify what other apps a user has installed. The issue is caused by an information disclosure vulnerability, which can be exploited by an app to identify other installed apps. Defenders should assess exposure and apply patches to prevent potential exploitation attempts.

Vendor
Apple
Product
iOS and iPadOS
CVSS
LOW 3.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-14
Original CVE updated
2026-09-18
Advisory published
2026-09-14
Advisory updated
2026-09-18

Who should care

Defenders responsible for managing and securing Apple devices, particularly those with sensitive or managed applications, should assess exposure and apply patches. They should also verify and apply patches for affected Apple devices, inventory and assess exposure of Apple devices, and monitor for potential exploitation attempts. Defenders should prioritize verifying and applying patches for affected Apple devices to prevent potential exploitation attempts.

Why it matters

Defenders should prioritize verifying and applying patches for affected Apple devices, particularly those with sensitive or managed applications, to prevent potential exploitation attempts and unauthorized access to sensitive information.

  • An app may be able to identify what other apps a user has installed, potentially leading to targeted attacks or unauthorized access to sensitive information.
  • Defenders should verify and apply patches to prevent potential exploitation attempts.
  • Inventory and assess exposure of Apple devices to prioritize patching and mitigation efforts.

Technical summary

An information disclosure issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to identify what other apps a user has installed. The vulnerability is caused by an information disclosure issue, which can be exploited by an app to identify other installed apps. The issue is addressed by improved state management, which prevents an app from accessing information about other installed apps.

Defensive priority

Defenders should prioritize verifying and applying patches for affected Apple devices, particularly those with sensitive or managed applications.

Recommended defensive actions

  • Verify and apply patches for affected Apple devices
  • Inventory and assess exposure of Apple devices
  • Monitor for potential exploitation attempts
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability and affected products. Apple has released advisories for this issue. The vulnerability is caused by an information disclosure issue addressed with improved state management. The CVE record was published on 2026-09-14T21:17:37.630Z and has not been modified since then. The NVD entry is currently Analyzed. Defenders should verify and apply patches for affected Apple devices, particularly those with sensitive or managed applications.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-84626 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-84626

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-84626 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-84626

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.