Red Hat Cloudforms
Monthly
Remote code execution in ManageIQ (and its downstream Red Hat CloudForms) is possible because the YamlLoadAliases module overrides YAML.safe_load so that in production a Psych::DisallowedClass error silently falls back to YAML.unsafe_load, deserializing arbitrary Ruby objects. An authenticated attacker holding dialog import privileges (CVSS 3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, base 8.8) can upload a crafted YAML dialog payload containing a disallowed class to trigger an unsafe deserialization path with full confidentiality, integrity, and availability impact. No public exploit code has been identified at time of analysis and there is no CISA KEV listing, but Red Hat CloudForms has reached End of Life and no errata will be issued, so CloudForms operators cannot patch and must depend on restricting the dialog import role.
Remote code execution in ManageIQ (and its downstream Red Hat CloudForms) is possible because the YamlLoadAliases module overrides YAML.safe_load so that in production a Psych::DisallowedClass error silently falls back to YAML.unsafe_load, deserializing arbitrary Ruby objects. An authenticated attacker holding dialog import privileges (CVSS 3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, base 8.8) can upload a crafted YAML dialog payload containing a disallowed class to trigger an unsafe deserialization path with full confidentiality, integrity, and availability impact. No public exploit code has been identified at time of analysis and there is no CISA KEV listing, but Red Hat CloudForms has reached End of Life and no errata will be issued, so CloudForms operators cannot patch and must depend on restricting the dialog import role.