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CVE-2026-93852

HIGH
7.1
CVSS Score
Published: September 18, 2026 at 06:48 PM UTC
Updated: September 22, 2026 at 08:11 PM UTC
1 product affected across 1 vendorBlazar

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Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Blazar· Openstack
60%
1.0.0 ≤ v < 15.1.116.0.0 ≤ v < 16.0.117.0.0 ≤ v < 17.0.11.0.016.0.017.0.0
Affected range stops below 15.1.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Issue Tracking
Source: cverecord
https://launchpad.net/bugs/2162719

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHmitre
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-862

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