Medium
gssproxy — security advisory
A NULL pointer dereference vulnerability was found in gssproxy. When a GSSX_INIT_SEC_CONTEXT request is received with the target_name field absent, the daemon dereferences the resulting NULL pointer and crashes. The request requires no authentication, allowing any local user to crash the gssproxy daemon via its Unix socket. The daemon does not automatically restart, resulting in a persistent denial of service that also affects dependent services such as Kerberized NFS and IdM.
- Products
- gssproxy
- Affected versions
- 0.9.1-1, 0.9.2-1, 0.9.2-2, 0.9.2-3, 0.9.2-4, 0.9.2-5, 0.9.2-5~exp0
- Fixed versions
- Not specified
- CVEs
- CVE-2026-116497
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:20 UTC · Revision 1
Source evidence
A NULL pointer dereference vulnerability was found in gssproxy. When a GSSX_INIT_SEC_CONTEXT request is received with the target_name field absent, the daemon dereferences the resulting NULL pointer and crashes. The request requires no authentication, allowing any local user to crash the gssproxy daemon via its Unix socket. The daemon does not automatically restart, resulting in a persistent denial of service that also affects dependent services such as Kerberized NFS and IdM.
osv:DEBIAN-CVE-2026-116497
gssproxy
Fixed versions: Not specified
gssproxy
Fixed versions: Not specified
gssproxy
Fixed versions: Not specified
Complete source record
{
"id": "d6543e6eb074c70445c6063a384e9801a511f07b8b7ee2f52087f7a893ae115f",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-116497",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-116497",
"summary": "A NULL pointer dereference vulnerability was found in gssproxy. When a GSSX_INIT_SEC_CONTEXT request is received with the target_name field absent, the daemon dereferences the resulting NULL pointer and crashes. The request requires no authentication, allowing any local user to crash the gssproxy daemon via its Unix socket. The daemon does not automatically restart, resulting in a persistent denial of service that also affects dependent services such as Kerberized NFS and IdM.",
"evidence": "osv:DEBIAN-CVE-2026-116497",
"products": [
{
"name": {
"value": "gssproxy",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.9.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.9.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.9.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.9.2-4",
"evidence": "/affected/0/versions"
},
{
"value": "0.9.2-5",
"evidence": "/affected/0/versions"
},
{
"value": "0.9.2-5~exp0",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"affected_versions": [
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"value": "0.9.2-3",
"evidence": "/affected/1/versions"
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{
"value": "0.9.2-4",
"evidence": "/affected/1/versions"
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{
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{
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}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "0.9.2-3",
"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
},
{
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}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-116497",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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}
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],
"package": {
"name": "gssproxy",
"purl": "pkg:deb/debian/gssproxy?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
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"0.9.2-1",
"0.9.2-2",
"0.9.2-3",
"0.9.2-4",
"0.9.2-5",
"0.9.2-5~exp0"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116497.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "gssproxy",
"purl": "pkg:deb/debian/gssproxy?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.9.2-3",
"0.9.2-4",
"0.9.2-5",
"0.9.2-5~exp0"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116497.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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],
"package": {
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"purl": "pkg:deb/debian/gssproxy?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
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"0.9.2-4",
"0.9.2-5",
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],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-116497.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-27T05:00:07.018342515Z",
"provider": "osv",
"upstream": [
"CVE-2026-116497"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-116497"
]
},
"related_cves": [
{
"value": "CVE-2026-116497",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 460339,
"published_at": "2026-10-26T15:16:40.42+00:00"
}