CVE-2026-21438
webtransport-go is an implementation of the WebTransport protocol. Prior to 0.10.0, an attacker can cause unbounded memo
webtransport-go is an implementation of the WebTransport protocol. Prior to 0.10.0, an attacker can cause unbounded memory consumption repeatedly creating and closing many WebTransport streams. Closed streams were not removed from an internal session map, preventing garbage collection of their resources.
This vulnerability is fixed in v0.10.0.
MEDIUM · CVSS 5.3
EPSS 0.0002
Schedule remediation
- SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0
YARA rules0