Description
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.
Scores
CVSS v3
5.3
EPSS
0.0002
EPSS Percentile
5.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-459
CWE-401
Status
published
Products (2)
quic-go/webtransport-go
< 0.10.0
quic-go/webtransport-go
0 - 0.10.0Go
Published
Feb 12, 2026
Tracked Since
Feb 18, 2026