DEBIAN-CVE-2026-10650
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.
DEBIAN-CVE-2026-10650
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-10650
libwebsockets
Source reference: /affected/0/package/name
- Affected versions
- 4.1.6-3
Source reference:
/affected/0/versions4.1.6-3.1Source reference:
/affected/0/versions4.3.2-1Source reference:
/affected/0/versions4.3.2-2Source reference:
/affected/0/versions4.3.2-3Source reference:
/affected/0/versions4.3.2-4Source reference:
/affected/0/versions4.3.3-1Source reference:
/affected/0/versions4.3.3-1.1Source reference:
/affected/0/versions4.3.3-1.1~exp1Source reference:
/affected/0/versions4.3.5-1Source reference:
/affected/0/versions4.3.5-2Source reference:
/affected/0/versions4.3.5-3Source reference:
/affected/0/versions4.3.5-4Source reference:
/affected/0/versions4.3.5-4.1Source reference:
/affected/0/versions4.3.5-5Source reference:
/affected/0/versions4.3.5-6Source reference:
/affected/0/versions4.3.5-7Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libwebsockets
Source reference: /affected/1/package/name
- Affected versions
- 4.3.5-1
Source reference:
/affected/1/versions4.3.5-1+deb13u1Source reference:
/affected/1/versions - Fixed versions
- 4.3.5-1+deb13u2
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
libwebsockets
Source reference: /affected/2/package/name
- Affected versions
- 4.3.5-1
Source reference:
/affected/2/versions4.3.5-2Source reference:
/affected/2/versions4.3.5-3Source reference:
/affected/2/versions4.3.5-4Source reference:
/affected/2/versions4.3.5-4.1Source reference:
/affected/2/versions - Fixed versions
- 4.3.5-5
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libwebsockets",
"purl": "pkg:deb/debian/libwebsockets?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"4.1.6-3",
"4.1.6-3.1",
"4.3.2-1",
"4.3.2-2",
"4.3.2-3",
"4.3.2-4",
"4.3.3-1",
"4.3.3-1.1",
"4.3.3-1.1~exp1",
"4.3.5-1",
"4.3.5-2",
"4.3.5-3",
"4.3.5-4",
"4.3.5-4.1",
"4.3.5-5",
"4.3.5-6",
"4.3.5-7"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10650.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.5-1+deb13u2"
}
]
}
],
"package": {
"name": "libwebsockets",
"purl": "pkg:deb/debian/libwebsockets?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"4.3.5-1",
"4.3.5-1+deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10650.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.5-5"
}
]
}
],
"package": {
"name": "libwebsockets",
"purl": "pkg:deb/debian/libwebsockets?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"4.3.5-1",
"4.3.5-2",
"4.3.5-3",
"4.3.5-4",
"4.3.5-4.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10650.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55405 · Revision 1
- Added to Heist Feed
- Publisher date