# github.com/quic-go/webtransport-go (Go) vulnerabilities

4 known vulnerabilities (4 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pkg.go.dev/github.com/quic-go/webtransport-go

## Advisories (4)

### [CVE-2026-57497](https://cve.now/CVE-2026-57497): webtransport-go: Memory Exhaustion Attack due to Buffering of Unknown Capsules

- Severity: Medium 5.3
- Published: Sep 14, 2026
- Affected: fixed in 0.11.1.

### [CVE-2026-21438](https://cve.now/CVE-2026-21438): webtransport-go affected by a Memory Exhaustion Attack due to Missing Cleanup of Streams Map

- Severity: Medium 5.3
- Published: Feb 12, 2026
- Affected: fixed in 0.10.0.

### [CVE-2026-21435](https://cve.now/CVE-2026-21435): webtransport-go CloseWithError can block indefinitely

- Severity: Medium 5.3
- Published: Feb 12, 2026
- Affected: fixed in 0.10.0.

### [CVE-2026-21434](https://cve.now/CVE-2026-21434): webtransport-go affected by Memory Exhaustion Attack due to Missing Length Check in WT\_CLOSE\_SESSION Capsule

- Severity: Medium 5.3
- Published: Feb 12, 2026
- Affected: fixed in 0.10.0; from 0.3.0, fixed in 0.10.0.

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