# CVE-2026-84545: CVE-2026-84545

Status: published. Published: 2026-10-26. Updated: 2026-11-03.

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An app with App Sandbox restrictions may be able to escape the sandbox and execute code with root privileges.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Apple / macOS: ≥ 0; < 15.8.2 (affected, custom); ≥ 0; < 26.7.2 (affected, custom); ≥ 0; < 27 (affected, custom). Source: CNA: apple

## Severity and prioritization

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H; source: ADP: CISA-ADP

- CISA KEV: No listing in collected sources

- EPSS: 0.24% as of 2026-11-03; percentile 15.86%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-416

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://support.apple.com/en-us/149035 (CNA: apple)

- https://support.apple.com/en-us/149522 (CNA: apple)

- https://support.apple.com/en-us/149523 (CNA: apple)

## Provenance

- CNA: apple: https://www.cve.org/CVERecord?id=CVE-2026-84545; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-84545; retrieved 2026-11-03; source updated Not reported

Revision: feb810b300c03104bef4a0b0998d3336fe9ec2af3279c04eeb533db67ca1d5bf

Canonical: https://y2.dev/cve/CVE-2026-84545

## Agent and API access

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- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

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- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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