This page tracks the Alpine Linux fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-11586 →

ALPINE-CVE-2026-11586

By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a...

Original description

The description as published by the source.

By default, curl automatically responds to WebSocket PING frames. Because curl
lacks an upper bound on memory allocation for unacknowledged frames, a
malicious server can exhaust all available memory by flooding curl with rapid,
sequential PING messages.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Alpine:v3.23 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"8.16.0"},{"fixed":"8.22.0-r0"}]}]

Alpine:v3.24 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"8.16.0"},{"fixed":"8.21.0-r0"}]}]

References

advisory security.alpinelinux.org