Apache CloudStack: Lack of user permission validation leading to data leak for few APIs

published 2025-11-27 11 mo ago modified 2026-10-18 21 d ago also EUVD-2025-199819

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits: 0; none known

In Apache CloudStack, a gap in access control checks affected the APIs - createNetworkACL - listNetworkACLs - listResourceDetails - listVirtualMachinesUsageHistory - listVolumesUsageHistory

While these APIs were accessible only to authorized users, insufficient permission validation meant that users could occasionally access information beyond their intended scope.

Users are recommended to upgrade to Apache CloudStack 4.20.2.0 or 4.22.0.0, which fixes the issue.

Patch / fix

fixed in 1

Apache Software Foundation Apache CloudStack 4.20.2, 4.22.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 11 mo ago (2025-11-28)

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

Apache Software Foundation Apache CloudStack

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

lists.apache.org /thread/0hlklvlwhzsfw39nocmyxb6svjbs9xbc
vendor-advisory, mailing-list
openwall.com /lists/oss-security/2025/11/27/3
mailing-list, third-party-advisory

Sources

CVE List CVE-2025-59454
NVD CVE-2025-59454

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary