PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-86902 Apple CVE debrief

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27, macOS Sonoma 14.8.8. An app may be able to access sensitive user data. Defenders responsible for macOS systems, particularly those using macOS Golden Gate 27 and macOS Sonoma 14.8.8, should assess exposure and apply patches to prevent potential unauthorized access to sensitive user data. Evidence from the CVE record and NVD entry supports this defensive priority.

Vendor
Apple
Product
macOS
CVSS
MEDIUM 5.5
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 macOS systems, particularly those using macOS Golden Gate 27 and macOS Sonoma 14.8.8, should assess exposure and apply patches to prevent potential unauthorized access to sensitive user data.

Why it matters

Defenders should prioritize verifying and applying patches for macOS Golden Gate 27 and macOS Sonoma 14.8.8 to prevent potential unauthorized access to sensitive user data. Evidence from the CVE record and NVD entry supports this defensive priority.

  • Potential unauthorized access to sensitive user data.
  • Need to verify and apply vendor-provided patches.
  • Monitoring system logs for access attempts.

Technical summary

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Golden Gate 27, macOS Sonoma 14.8.8. An app may be able to access sensitive user data. The issue involves improved path validation to prevent potential unauthorized access to sensitive user data. Vendor advisories are available for further information.

Defensive priority

Defenders should prioritize verifying and applying the vendor-provided patches for macOS Golden Gate 27 and macOS Sonoma 14.8.8 to prevent potential unauthorized access to sensitive user data.

Recommended defensive actions

  • Verify and apply the vendor-provided patches for macOS Golden Gate 27 and macOS Sonoma 14.8.8.
  • Monitor system logs for potential unauthorized access attempts.
  • Restrict app permissions to minimize exposure.

Evidence notes

The CVE record and NVD entry provide details on the parsing issue and the affected macOS versions. Vendor advisories are available for further information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-86902 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-86902

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

  • CVE-2026-86902 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-86902

    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.