Cloudanix VulnDB

CVE-2026-21438

Medium · 5.3

CVSS

5.3

EPSS

0.4%

Published

Feb 12, 2026

CISA due date

—

The record

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 packages

Ecosystem Package Introduced Fixed
Go github.com/quic-go/webtransport-go 0 0.10.0
Chainguard ipfs-cluster 0 1.1.5-r5
Chainguard ipfs-cluster-fips 0 1.1.5-r4
Chainguard k3s 0 1.35.1.1-r1
Chainguard k3s-1.32 0 1.32.13.1-r2
Chainguard k3s-1.33 0 1.33.9.1-r3
Chainguard k3s-static 0 1.35.1.1-r1
Chainguard k3s-static-1.31 0 1.31.6.1-r13
Chainguard k3s-static-1.32 0 1.32.13.1-r2
Chainguard kubo 0 0.39.0-r5
Chainguard rke2-runtime-1.31 0 1.31.14.2.1-r8
Chainguard rke2-runtime-1.32 0 1.32.12.2.1-r2
Chainguard rke2-runtime-1.33 0 1.33.8.2.1-r2
Chainguard rke2-runtime-1.34 0 1.34.4.2.1-r2
Chainguard rke2-runtime-1.35 0 1.35.1.2.1-r2
Chainguard spegel 0 0.6.0-r4
Chainguard spegel-fips 0 0.6.0-r4
Wolfi ipfs-cluster 0 1.1.5-r5
Wolfi k3s 0 1.35.1.1-r1
Wolfi k3s-1.32 0 1.32.13.1-r2
Wolfi k3s-1.33 0 1.33.9.1-r3
Wolfi k3s-static 0 1.35.1.1-r1
Wolfi k3s-static-1.32 0 1.32.13.1-r2
Wolfi kubo 0 0.39.0-r5
Wolfi spegel 0 0.6.0-r4
openSUSE:Leap 15.6 govulncheck-vulndb 0 0.0.20260226T182644-150000.1.149.1

Related vulnerabilities