{"schema_version":"1.3.1","id":"GO-2026-4485","modified":"2026-02-19T17:28:55Z","published":"2026-02-19T17:28:55Z","aliases":["CVE-2026-21434","GHSA-g6x7-jq8p-6q9q"],"summary":"webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule in github.com/quic-go/webtransport-go","details":"webtransport-go: Memory Exhaustion Attack due to Missing Length Check in WT_CLOSE_SESSION Capsule in github.com/quic-go/webtransport-go","affected":[{"package":{"name":"github.com/quic-go/webtransport-go","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.10.0"}]}],"ecosystem_specific":{}},{"package":{"name":"github.com/marten-seemann/webtransport-go","ecosystem":"Go"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.3.0"}]}],"ecosystem_specific":{}}],"references":[{"type":"ADVISORY","url":"https://github.com/quic-go/webtransport-go/security/advisories/GHSA-g6x7-jq8p-6q9q"},{"type":"WEB","url":"https://github.com/quic-go/webtransport-go/releases/tag/v0.10.0"}],"database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4485","review_status":"UNREVIEWED"}}