---
id: "CVE-2026-86986"
kind: "vulnerability"
aliases: ["CVE-2026-86986"]
title: "Safari: use-after-free lets crafted web content crash the browser"
severity: "low"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "ios", "ipados", "macos", "safari", "visionos"]
not_affected_if: ["patched-version"]
published_at: "2026-10-26T21:20:37+00:00"
first_seen_at: "2026-10-26T21:55:22+00:00"
updated_at: "2026-10-26T21:56:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86986", "first_seen_at": "2026-10-26T21:55:22+00:00"}]
---

# Safari: use-after-free lets crafted web content crash the browser

A use-after-free flaw in Safari lets maliciously crafted web content crash the browser. The sources describe a crash only, not code execution or data access.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Safari version under Safari > About Safari on macOS, or the iOS and iPadOS version under Settings > General > About.

## Fix

- Update Safari to `27.2` on macOS Golden Gate, or update iOS and iPadOS to `26.7.2` or `27.2`, and visionOS to `27.2`, per the vendor note.

## Timeline

- 2026-10-26T21:55:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86986

## From the sources

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, visionOS 27.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_