UnratedFix available
Fix CVE(s): CVE-2026-73282
Type: advisorySources: OSV
* SECURITY UPDATE: Use-after-free on reallocated remote forwarding data - debian/patches/CVE-2026-73282.patch: pass an index-based rfwd_confirm_ctx to client_register_global_confirm() instead of a pointer into the options.remote_forwards array, so that a remote forwarding added over the local multiplexing socket cannot leave ssh_confirm_remote_forward() holding a pointer invalidated by the array reallocation, in ssh.c - CVE-2026-73282
- Products
- openssh-client, openssh-server, openssh-sftp-server, openssh-tests, ssh, ssh-askpass-gnome
- Affected versions
- Not specified
- Fixed versions
- 1:8.2p1-4ubuntu0.13+tuxcare.els5
- CVEs
- CVE-2026-73282
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:59 UTC · Revision 1
Source evidence
* SECURITY UPDATE: Use-after-free on reallocated remote forwarding data - debian/patches/CVE-2026-73282.patch: pass an index-based rfwd_confirm_ctx to client_register_global_confirm() instead of a pointer into the options.remote_forwards array, so that a remote forwarding added over the local multiplexing socket cannot leave ssh_confirm_remote_forward() holding a pointer invalidated by the array reallocation, in ssh.c - CVE-2026-73282
osv:CLSA-2026-1789391814
openssh-client
Fixed versions: 1:8.2p1-4ubuntu0.13+tuxcare.els5
openssh-server
Fixed versions: 1:8.2p1-4ubuntu0.13+tuxcare.els5
openssh-sftp-server
Fixed versions: 1:8.2p1-4ubuntu0.13+tuxcare.els5
openssh-tests
Fixed versions: 1:8.2p1-4ubuntu0.13+tuxcare.els5
ssh
Fixed versions: 1:8.2p1-4ubuntu0.13+tuxcare.els5
ssh-askpass-gnome
Fixed versions: 1:8.2p1-4ubuntu0.13+tuxcare.els5
Complete source record
{
"id": "208d7a7bd2119673f4726723b4a918af526a66fec41156f25067f11e1e0b9a95",
"url": "https://osv.dev/vulnerability/CLSA-2026-1789391814",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-73282",
"summary": "* SECURITY UPDATE: Use-after-free on reallocated remote forwarding data - debian/patches/CVE-2026-73282.patch: pass an index-based rfwd_confirm_ctx to client_register_global_confirm() instead of a pointer into the options.remote_forwards array, so that a remote forwarding added over the local multiplexing socket cannot leave ssh_confirm_remote_forward() holding a pointer invalidated by the array reallocation, in ssh.c - CVE-2026-73282",
"evidence": "osv:CLSA-2026-1789391814",
"products": [
{
"name": {
"value": "openssh-client",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:8.2p1-4ubuntu0.13+tuxcare.els5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh-server",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:8.2p1-4ubuntu0.13+tuxcare.els5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh-sftp-server",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:8.2p1-4ubuntu0.13+tuxcare.els5",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openssh-tests",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:8.2p1-4ubuntu0.13+tuxcare.els5",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ssh",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:8.2p1-4ubuntu0.13+tuxcare.els5",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ssh-askpass-gnome",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:8.2p1-4ubuntu0.13+tuxcare.els5",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1789391814",
"aliases": [
"CLSA-2026-1789391814"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.2p1-4ubuntu0.13+tuxcare.els5"
}
]
}
],
"package": {
"name": "openssh-client",
"purl": "pkg:deb/tuxcare/openssh-client?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789391814.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.2p1-4ubuntu0.13+tuxcare.els5"
}
]
}
],
"package": {
"name": "openssh-server",
"purl": "pkg:deb/tuxcare/openssh-server?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789391814.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.2p1-4ubuntu0.13+tuxcare.els5"
}
]
}
],
"package": {
"name": "openssh-sftp-server",
"purl": "pkg:deb/tuxcare/openssh-sftp-server?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789391814.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.2p1-4ubuntu0.13+tuxcare.els5"
}
]
}
],
"package": {
"name": "openssh-tests",
"purl": "pkg:deb/tuxcare/openssh-tests?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789391814.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.2p1-4ubuntu0.13+tuxcare.els5"
}
]
}
],
"package": {
"name": "ssh",
"purl": "pkg:deb/tuxcare/ssh?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789391814.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.2p1-4ubuntu0.13+tuxcare.els5"
}
]
}
],
"package": {
"name": "ssh-askpass-gnome",
"purl": "pkg:deb/tuxcare/ssh-askpass-gnome?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1789391814.json"
}
}
],
"modified": "2026-10-26T09:31:40.147527064Z",
"provider": "osv",
"upstream": [
"CVE-2026-73282"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1789391814.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-73282"
]
},
"related_cves": [
{
"value": "CVE-2026-73282",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448026,
"published_at": "2026-09-14T13:17:06+00:00"
}