Medium
zaqar — security advisory
In OpenStack Zaqar before 23.0.1, the WebSocket transport fails to bind the project identifier in subsequent requests to the project authenticated by the Keystone token. An authenticated user with a valid token for one project may substitute another project's UUID to enumerate, inspect, create, or delete queues belonging to that project, resulting in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected.
- Products
- zaqar
- Affected versions
- 1.0.0-2, 1.0.0-6, 10.0.0-0ubuntu0.20.04.1, 10.0.0~b1~git2019121815.55c73e22-0ubuntu1, 10.0.0~b2~git2020021011.22c457a5-0ubuntu1, 10.0.0~b3~git2020032614.22c457a5-0ubuntu1, 10.0.0~b3~git2020041014.22c457a5-0ubuntu1, 13.0.0+git2021120910.a7593240-0ubuntu1, 13.0.0+git2022011310.1726ac41-0ubuntu1, 13.0.0-0ubuntu1, 14.0.0-0ubuntu1, 17.0.0+git2024020808.2c859275-0ubuntu1, 17.0.0-0ubuntu1, 18.0.0-0ubuntu1, 18.0.0~rc1-0ubuntu1, 2.0.0-1, 21.0.0+git20260121.32.59a7a63d-0ubuntu1, 21.0.0-0ubuntu1, 22.0.0+git20260723.62.36e0796-0ubuntu1, 22.0.0-0ubuntu1, 22.0.0~rc1-0ubuntu2, 23.0.0-0ubuntu1, 23.0.0~rc1-0ubuntu1, 5.0.0-0ubuntu1, 6.0.0-0ubuntu1, 6.0.0~b1-0ubuntu1, 6.0.0~b2-0ubuntu2, 6.0.0~b3-0ubuntu1, 6.0.0~rc1-0ubuntu1, 9.0.0-0ubuntu1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-107363
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:54 UTC · Revision 1
Source evidence
In OpenStack Zaqar before 23.0.1, the WebSocket transport fails to bind the project identifier in subsequent requests to the project authenticated by the Keystone token. An authenticated user with a valid token for one project may substitute another project's UUID to enumerate, inspect, create, or delete queues belonging to that project, resulting in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected.
osv:UBUNTU-CVE-2026-107363
zaqar
Fixed versions: Not specified
zaqar
Fixed versions: Not specified
zaqar
Fixed versions: Not specified
zaqar
Fixed versions: Not specified
zaqar
Fixed versions: Not specified
zaqar
Fixed versions: Not specified
zaqar
Fixed versions: Not specified
Complete source record
{
"id": "73b847097cfe9e60f15131620bff17846e2fe12a1dad0b43c31c791e8ab79bcc",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-107363",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-107363",
"summary": "In OpenStack Zaqar before 23.0.1, the WebSocket transport fails to bind the project identifier in subsequent requests to the project authenticated by the Keystone token. An authenticated user with a valid token for one project may substitute another project's UUID to enumerate, inspect, create, or delete queues belonging to that project, resulting in unauthorized disclosure, modification, or loss of queue data. Only deployments using the WebSocket transport with Keystone authentication are affected.",
"evidence": "osv:UBUNTU-CVE-2026-107363",
"products": [
{
"name": {
"value": "zaqar",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.0.0-6",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "zaqar",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.0-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0~b1-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0~b2-0ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0~b3-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0~rc1-0ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0-0ubuntu1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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},
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"affected_versions": [
{
"value": "9.0.0-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "10.0.0~b1~git2019121815.55c73e22-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "10.0.0~b2~git2020021011.22c457a5-0ubuntu1",
"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
},
{
"value": "10.0.0~b3~git2020041014.22c457a5-0ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "10.0.0-0ubuntu0.20.04.1",
"evidence": "/affected/2/versions"
}
]
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{
"name": {
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"evidence": "/affected/3/package/name"
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"affected_versions": [
{
"value": "13.0.0-0ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "13.0.0+git2021120910.a7593240-0ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "13.0.0+git2022011310.1726ac41-0ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "14.0.0-0ubuntu1",
"evidence": "/affected/3/versions"
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]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "17.0.0-0ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "17.0.0+git2024020808.2c859275-0ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "18.0.0~rc1-0ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "18.0.0-0ubuntu1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "zaqar",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "22.0.0-0ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "22.0.0+git20260723.62.36e0796-0ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "23.0.0~rc1-0ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "23.0.0-0ubuntu1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "zaqar",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "21.0.0-0ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "21.0.0+git20260121.32.59a7a63d-0ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "22.0.0~rc1-0ubuntu2",
"evidence": "/affected/6/versions"
},
{
"value": "22.0.0-0ubuntu1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-107363",
"aliases": [
"UBUNTU-CVE-2026-107363"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "zaqar",
"purl": "pkg:deb/ubuntu/zaqar?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.0.0-2",
"1.0.0-6",
"2.0.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107363.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-zaqar",
"binary_version": "2.0.0-1"
},
{
"binary_name": "zaqar-common",
"binary_version": "2.0.0-1"
},
{
"binary_name": "zaqar-server",
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{
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"package": {
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"purl": "pkg:deb/ubuntu/zaqar?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"5.0.0-0ubuntu1",
"6.0.0~b1-0ubuntu1",
"6.0.0~b2-0ubuntu2",
"6.0.0~b3-0ubuntu1",
"6.0.0~rc1-0ubuntu1",
"6.0.0-0ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107363.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-zaqar",
"binary_version": "6.0.0-0ubuntu1"
},
{
"binary_name": "zaqar-common",
"binary_version": "6.0.0-0ubuntu1"
},
{
"binary_name": "zaqar-server",
"binary_version": "6.0.0-0ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
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}
],
"package": {
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"purl": "pkg:deb/ubuntu/zaqar?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"9.0.0-0ubuntu1",
"10.0.0~b1~git2019121815.55c73e22-0ubuntu1",
"10.0.0~b2~git2020021011.22c457a5-0ubuntu1",
"10.0.0~b3~git2020032614.22c457a5-0ubuntu1",
"10.0.0~b3~git2020041014.22c457a5-0ubuntu1",
"10.0.0-0ubuntu0.20.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-107363.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-zaqar",
"binary_version": "10.0.0-0ubuntu0.20.04.1"
},
{
"binary_name": "zaqar-common",
"binary_version": "10.0.0-0ubuntu0.20.04.1"
},
{
"binary_name": "zaqar-server",
"binary_version": "10.0.0-0ubuntu0.20.04.1"
}
]
}
},
{
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],
"package": {
"name": "zaqar",
"purl": "pkg:deb/ubuntu/zaqar?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"13.0.0-0ubuntu1",
"13.0.0+git2021120910.a7593240-0ubuntu1",
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},
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"17.0.0+git2024020808.2c859275-0ubuntu1",
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},
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{
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},
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}
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{
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],
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"purl": "pkg:deb/ubuntu/zaqar?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"21.0.0+git20260121.32.59a7a63d-0ubuntu1",
"22.0.0~rc1-0ubuntu2",
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],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-zaqar",
"binary_version": "22.0.0-0ubuntu1"
},
{
"binary_name": "zaqar-common",
"binary_version": "22.0.0-0ubuntu1"
},
{
"binary_name": "zaqar-server",
"binary_version": "22.0.0-0ubuntu1"
}
]
}
}
],
"modified": "2026-10-17T12:59:48.054199416Z",
"provider": "osv",
"upstream": [
"CVE-2026-107363"
],
"references": [
"https://ubuntu.com/security/CVE-2026-107363",
"https://www.cve.org/CVERecord?id=CVE-2026-107363",
"https://security.openstack.org/ossa/OSSA-2026-043.html",
"https://bugs.launchpad.net/ossa/+bug/2161402",
"https://launchpad.net/bugs/2161402",
"https://www.openwall.com/lists/oss-security/2026/10/07/30"
]
},
"related_cves": [
{
"value": "CVE-2026-107363",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359786,
"published_at": "2026-10-07T21:17:00+00:00"
}