cvedb.io
CVE-2026-21438
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-02-12T19:15:51.677 · Last modified 2026-06-17T10:18:40.410

Summary

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.

Affected products

quic-go — webtransport-go

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.