CVE-2026-92761
WebVirtCloud Missing Authorization on Instance Control Actions
CVSS 4.0 8.7 HIGHCVSS 3.1 8.8 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-92761
PublishedWebVirtCloud fails to properly validate permission flags in UserInstance grants, allowing view-only users to perform privileged actions. Attackers with read-only grants can power off virtual machines, reset root passwords, install SSH keys, and manage ISO images by exploiting the get_instance gate that only checks grant existence.
Read the publisher's advisoryAffected versions, risk and source history
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CVE-2026-92761 · CVE overview and exploitation status
cve-program · CVE-2026-92761
- https://github.com/retspen/webvirtcloud/issues/682
- https://github.com/retspen/webvirtcloud
- https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30ac88280/instances/views.py#L316-L330
- https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30ac88280/instances/views.py#L356-L363
- https://github.com/retspen/webvirtcloud/blob/1b2da68b2800f94674dd96f4a986cde30ac88280/instances/views.py#L538-L546
- https://www.vulncheck.com/advisories/webvirtcloud-missing-authorization-on-instance-control-actions
Related changes
Linked by CVE identifierNo related changes are available here.