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).
Scores
CVSS v3
7.5
EPSS
0.0040
EPSS Percentile
60.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-703
Status
published
Products (1)
snowplow/snowbridge
Published
Apr 03, 2025
Tracked Since
Feb 18, 2026