Resource Exhaustion Affecting libwebsockets package, versions <4.3.5-1+deb13u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.43% (35th percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBWEBSOCKETS-19256849
  • published25 Aug 2026
  • disclosed2 Jun 2026

Introduced: 2 Jun 2026

CVE-2026-10650  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-404  (opens in a new tab)

How to fix?

Upgrade Echo:latest libwebsockets to version 4.3.5-1+deb13u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libwebsockets package and not the libwebsockets package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw has been found in warmcat libwebsockets up to 4.5.8. This issue affects the function lws_ssh_parse_plaintext of the file plugins/protocol_lws_ssh_base/sshd.c of the component SSH Protocol Handler. Executing a manipulation of the argument msg_len can lead to resource consumption. The attack may be launched remotely. The exploit has been published and may be used. This patch is called 3f9f0c6ecaf0e6f3f219d30632c5d1f2479d7498. A patch should be applied to remediate this issue.

CVSS Base Scores

version 3.1