NCSC-2026-0332 [1.00] [M/H] Kwetsbaarheden verholpen in Apache CloudStack
Apache heeft meerdere kwetsbaarheden verholpen in Apache CloudStack, specifiek in versies 4.12.0.0 tot en met 4.22.1.0. De kwetsbaarheden betreffen onder andere OS Command Injection in de NAS backup provider plugin, Server-Side Request Forgery (SSRF) in verschillende modules zoals metalink mirror URL resolutie en webhook, onvoldoende toegangscontrole in userdata-gerelateerde API's, OAuth en LDAP authenticatie plugins, en improper privilege management in de two-factor authentication plugin. Verder zijn er kwetsbaarheden in de user interface met betrekking tot onjuiste encoding of escaping, command injection in diagnostics APIs, en improper access control in Kubernetes Service plugin en annotation APIs. Ook is er een kwetsbaarheid in de SAML certificaatvalidatie die het mogelijk maakt om authenticatie te omzeilen. Sommige kwetsbaarheden maken het mogelijk voor geauthenticeerde gebruikers om root- of administratieve commando's uit te voeren op KVM hypervisor hosts, systeem virtual machines en virtual routers, of om ongeautoriseerde toegang te verkrijgen tot gevoelige informatie en tenant data. Daarnaast is er een kwetsbaarheid in de listHostTags API die domeinrestricties kan omzeilen, en een issue in projectrollenbeheer door domeinbeheerders. De kwetsbaarheden zijn aanwezig in meerdere opeenvolgende versies van Apache CloudStack en betreffen zowel core functionaliteiten als plugins en API's.
CSIRTS triage
- What
- Multiple vulnerabilities including OS command injection in NAS backup plugin, SSRF in metalink and webhook modules, insufficient access control in userdata and authentication APIs, improper privilege management in two-factor authentication, UI encoding flaws, and SAML certificate validation bypass.
- Who is affected
- Deployments of CloudStack versions 4.12.0.0 through 4.22.1.0, with varying exposure depending on authentication requirements and API access.
- Urgency
- High; multiple remote code execution vectors and privilege escalation paths allow authenticated and unauthenticated attacks leading to administrative compromise.
- Action
- Upgrade to patched version beyond 4.22.1.0 immediately; review access controls on userdata, OAuth, LDAP, and Kubernetes APIs pending patch availability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://advisories.ncsc.nl/advisory?id=NCSC-2026-0332
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2026-473591.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 64% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-501120.46% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-502220.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-590850.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-596550.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-596570.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-597800.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-597990.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-613970.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-613980.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Referenced CVEs
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[NEW] [high] Apache CloudStack: Multiple vulnerabilitiescert-bund
- highCVE-2026-68745: Certificate validation failures in SAML authentication in Apache CloudStack 4.20.3.0 and 4.22.…nvd
- mediumCVE-2026-66797: Improper access control in CloudStack's annotation functionality allows unauthorized comment c…nvd
- highCVE-2026-66722: Improper authorization for CRUD operations on Project Roles and Project Role permissions for d…nvd
- lowCVE-2026-66721: Missing authorization issue for domain admins in CloudStack's host tags listing functionality.…nvd
- mediumCVE-2026-65613: Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack'…nvd
- criticalCVE-2026-62440: Improper Access Control vulnerability in Apache CloudStack's Kubernetes Service (CKS) plugin, …nvd
- mediumCVE-2026-61422: Authenticated pre-validation SSRF vulnerability in Apache CloudStack's template and ISO regist…nvd
- highCVE-2026-61400: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerabil…nvd
- mediumCVE-2026-61399: Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using Lo…nvd
- criticalCVE-2026-61398: Improper Encoding or Escaping of Output vulnerability in Apache CloudStack's UI while using In…nvd
- highCVE-2026-61397: Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache CloudStack'…nvd
Recent advisories for Kwetsbaarheden verholpen in
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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