CVE-2026-93852

Name	CVE-2026-93852
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1148408

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
blazar (PTS)	trixie	15.0.0-3	vulnerable
	forky, sid	18.0.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
blazar	source	(unstable)	18.0.0~rc1-3			1148408

[trixie] - blazar <no-dsa> (Minor issue)
https://launchpad.net/bugs/2162719
https://security.openstack.org/ossa/OSSA-2026-040.html