Fix CVE(s): CVE-2026-106553, CVE-2026-106555, CVE-2026-106583
* SECURITY UPDATE: GSSAPI client state persisting across authentication attempts - debian/patches/CVE-2026-106555.patch: reset the GSSAPI client state at the start of each userauth request and of each pre-authentication GSSAPI context setup in the monitor. - CVE-2026-106555 * SECURITY UPDATE: GSSAPI delegated credentials stored after failed authentication - debian/patches/CVE-2026-106553.patch: only store delegated GSSAPI credentials when the GSSAPI client was authorized. - CVE-2026-106553 * SECURITY UPDATE: command injection via command-line user name - debian/patches/CVE-2026-106583.patch: disallow '$' and '\' in a user name supplied on the ssh command line. - CVE-2026-106583
- Products
- openssh-client, openssh-server, openssh-sftp-server, openssh-tests, ssh, ssh-askpass-gnome
- Affected versions
- Not specified
- Fixed versions
- 1:7.9p1-10+deb10u4+tuxcare.els9
- CVEs
- CVE-2026-106553, CVE-2026-106555, CVE-2026-106583
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:23 UTC · Revision 1
Source evidence
Fix CVE(s): CVE-2026-106553, CVE-2026-106555, CVE-2026-106583
core-osv · Original sourcePublished 16 Oct 2026, 12:48 UTC
* SECURITY UPDATE: GSSAPI client state persisting across authentication attempts - debian/patches/CVE-2026-106555.patch: reset the GSSAPI client state at the start of each userauth request and of each pre-authentication GSSAPI context setup in the monitor. - CVE-2026-106555 * SECURITY UPDATE: GSSAPI delegated credentials stored after failed authentication - debian/patches/CVE-2026-106553.patch: only store delegated GSSAPI credentials when the GSSAPI client was authorized. - CVE-2026-106553 * SECURITY UPDATE: command injection via command-line user name - debian/patches/CVE-2026-106583.patch: disallow '$' and '\' in a user name supplied on the ssh command line. - CVE-2026-106583
osv:CLSA-2026-1792154919
openssh-client
Fixed versions: 1:7.9p1-10+deb10u4+tuxcare.els9
openssh-server
Fixed versions: 1:7.9p1-10+deb10u4+tuxcare.els9
openssh-sftp-server
Fixed versions: 1:7.9p1-10+deb10u4+tuxcare.els9
openssh-tests
Fixed versions: 1:7.9p1-10+deb10u4+tuxcare.els9
ssh
Fixed versions: 1:7.9p1-10+deb10u4+tuxcare.els9
ssh-askpass-gnome
Fixed versions: 1:7.9p1-10+deb10u4+tuxcare.els9
Complete source record
{
"id": "7ea1367895f256481f9907fe4614ed7391d3d5a3942cd1538af6cef8de2f0211",
"url": "https://osv.dev/vulnerability/CLSA-2026-1792154919",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-106553, CVE-2026-106555, CVE-2026-106583",
"summary": "* SECURITY UPDATE: GSSAPI client state persisting across authentication attempts - debian/patches/CVE-2026-106555.patch: reset the GSSAPI client state at the start of each userauth request and of each pre-authentication GSSAPI context setup in the monitor. - CVE-2026-106555 * SECURITY UPDATE: GSSAPI delegated credentials stored after failed authentication - debian/patches/CVE-2026-106553.patch: only store delegated GSSAPI credentials when the GSSAPI client was authorized. - CVE-2026-106553 * SECURITY UPDATE: command injection via command-line user name - debian/patches/CVE-2026-106583.patch: disallow '$' and '\\' in a user name supplied on the ssh command line. - CVE-2026-106583",
"evidence": "osv:CLSA-2026-1792154919",
"products": [
{
"name": {
"value": "openssh-client",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:7.9p1-10+deb10u4+tuxcare.els9",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh-server",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:7.9p1-10+deb10u4+tuxcare.els9",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh-sftp-server",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:7.9p1-10+deb10u4+tuxcare.els9",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh-tests",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:7.9p1-10+deb10u4+tuxcare.els9",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ssh",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:7.9p1-10+deb10u4+tuxcare.els9",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ssh-askpass-gnome",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:7.9p1-10+deb10u4+tuxcare.els9",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1792154919",
"aliases": [
"CLSA-2026-1792154919"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:7.9p1-10+deb10u4+tuxcare.els9"
}
]
}
],
"package": {
"name": "openssh-client",
"purl": "pkg:deb/tuxcare/openssh-client?distro=debian-10",
"ecosystem": "TuxCare:Debian:10"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792154919.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:7.9p1-10+deb10u4+tuxcare.els9"
}
]
}
],
"package": {
"name": "openssh-server",
"purl": "pkg:deb/tuxcare/openssh-server?distro=debian-10",
"ecosystem": "TuxCare:Debian:10"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792154919.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:7.9p1-10+deb10u4+tuxcare.els9"
}
]
}
],
"package": {
"name": "openssh-sftp-server",
"purl": "pkg:deb/tuxcare/openssh-sftp-server?distro=debian-10",
"ecosystem": "TuxCare:Debian:10"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792154919.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:7.9p1-10+deb10u4+tuxcare.els9"
}
]
}
],
"package": {
"name": "openssh-tests",
"purl": "pkg:deb/tuxcare/openssh-tests?distro=debian-10",
"ecosystem": "TuxCare:Debian:10"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792154919.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:7.9p1-10+deb10u4+tuxcare.els9"
}
]
}
],
"package": {
"name": "ssh",
"purl": "pkg:deb/tuxcare/ssh?distro=debian-10",
"ecosystem": "TuxCare:Debian:10"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792154919.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:7.9p1-10+deb10u4+tuxcare.els9"
}
]
}
],
"package": {
"name": "ssh-askpass-gnome",
"purl": "pkg:deb/tuxcare/ssh-askpass-gnome?distro=debian-10",
"ecosystem": "TuxCare:Debian:10"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1792154919.json"
}
}
],
"modified": "2026-10-26T09:31:53.179259745Z",
"provider": "osv",
"upstream": [
"CVE-2026-106553",
"CVE-2026-106555",
"CVE-2026-106583"
],
"references": [
"https://errata.tuxcare.com/els_os/debian10els/CLSA-2026-1792154919.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-106553",
"https://nvd.nist.gov/vuln/detail/CVE-2026-106555",
"https://nvd.nist.gov/vuln/detail/CVE-2026-106583"
]
},
"related_cves": [
{
"value": "CVE-2026-106553",
"evidence": "/upstream"
},
{
"value": "CVE-2026-106555",
"evidence": "/upstream"
},
{
"value": "CVE-2026-106583",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448837,
"published_at": "2026-10-16T12:48:51+00:00"
}