Go/github.com/marten-seemann/webtransport-go CVE-2026-21434: high 7.5, EPSS 0.46%
webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule in github.com/quic-go/webtransport-go
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.3.0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-4485#Go/github.com/marten-seemann/webtransport-go
- nvd: CVE-2026-21434
- https://github.com/quic-go/webtransport-go/security/advisories/GHSA-g6x7-jq8p-6q9q
- https://github.com/quic-go/webtransport-go/releases/tag/v0.10.0
CVE-2026-21434 · published · modified · JSON