---
id: "CVE-2026-86872"
kind: "vulnerability"
aliases: ["CVE-2026-86872"]
title: "Safari and visionOS: crafted web content causes unexpected behavior"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["apple", "other", "safari", "visionos", "watchos"]
not_affected_if: ["already-on-27"]
published_at: "2026-10-20T01:17:25+00:00"
first_seen_at: "2026-10-23T21:57:19+00:00"
updated_at: "2026-10-25T04:16:41+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86872", "first_seen_at": "2026-10-23T21:57:19+00:00"}]
---

# Safari and visionOS: crafted web content causes unexpected behavior

A logic flaw in Safari, visionOS and watchOS lets maliciously crafted web content trigger unexpected behavior. The sources do not say whether this leads to code execution or data exposure.

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

## Fix

- Update Safari to the version shipped with Safari 27
- Update visionOS and watchOS to 27 or later

## Timeline

- 2026-10-23T21:57:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-86872

## From the sources

A logic issue was addressed with improved state management. This issue is fixed in Safari 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to unexpected behavior.

---

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