ZeroHour

CVE-2026-11586

PoC
CVSS 3.1
7.5 high
EPSS
<1%p47
Published
()
Modified
Description

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.

Vendors
haxx
Products
curl
Weakness
CWE-770
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

In the news

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