DEBIAN-CVE-2026-93852
In OpenStack Blazar before 17.0.1, the V2 lease listing operation (GET /v2/leases) returns leases for every project without enforcing project scoping or an administrator-only policy. Any authenticated user with access to the Blazar REST API can enumerate leases belonging to other tenants, exposing lease IDs, reservation IDs, resource IDs, and reservation metadata. The exposed lease IDs also enable the object-level authorization bypass tracked in the companion request, allowing an attacker to then modify or delete the enumerated leases.
DEBIAN-CVE-2026-93852
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-2026-93852
blazar
Source reference: /affected/0/package/name
- Affected versions
- 15.0.0-3
Source reference:
/affected/0/versions16.0.0-1Source reference:
/affected/0/versions16.0.0~rc1-1Source reference:
/affected/0/versions16.0.0~rc1-2Source reference:
/affected/0/versions16.0.0~rc1-3Source reference:
/affected/0/versions17.0.0-1Source reference:
/affected/0/versions17.0.0-2Source reference:
/affected/0/versions17.0.0~rc1-1Source reference:
/affected/0/versions17.0.0~rc1-3Source reference:
/affected/0/versions18.0.0~rc1-1Source reference:
/affected/0/versions18.0.0~rc1-2Source reference:
/affected/0/versions18.0.0~rc1-3Source reference:
/affected/0/versions18.0.0~rc2-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
blazar
Source reference: /affected/1/package/name
- Affected versions
- 15.0.0-3
Source reference:
/affected/1/versions16.0.0-1Source reference:
/affected/1/versions16.0.0~rc1-1Source reference:
/affected/1/versions16.0.0~rc1-2Source reference:
/affected/1/versions16.0.0~rc1-3Source reference:
/affected/1/versions17.0.0-1Source reference:
/affected/1/versions17.0.0-2Source reference:
/affected/1/versions17.0.0~rc1-1Source reference:
/affected/1/versions17.0.0~rc1-3Source reference:
/affected/1/versions18.0.0~rc1-1Source reference:
/affected/1/versions18.0.0~rc1-2Source reference:
/affected/1/versions - Fixed versions
- 18.0.0~rc1-3
Source reference:
/affected/1/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": "blazar",
"purl": "pkg:deb/debian/blazar?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"15.0.0-3",
"16.0.0-1",
"16.0.0~rc1-1",
"16.0.0~rc1-2",
"16.0.0~rc1-3",
"17.0.0-1",
"17.0.0-2",
"17.0.0~rc1-1",
"17.0.0~rc1-3",
"18.0.0~rc1-1",
"18.0.0~rc1-2",
"18.0.0~rc1-3",
"18.0.0~rc2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-93852.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "18.0.0~rc1-3"
}
]
}
],
"package": {
"name": "blazar",
"purl": "pkg:deb/debian/blazar?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"15.0.0-3",
"16.0.0-1",
"16.0.0~rc1-1",
"16.0.0~rc1-2",
"16.0.0~rc1-3",
"17.0.0-1",
"17.0.0-2",
"17.0.0~rc1-1",
"17.0.0~rc1-3",
"18.0.0~rc1-1",
"18.0.0~rc1-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-93852.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #25956 · Revision 1
- Added to Heist Feed
- Publisher date