CVE-2026-52903 ManageIQ - Remote Code Execution

ManageIQ contains an insecure deserialization vulnerability caused by YamlLoadAliases module overriding YAML.safe_load to fallback to YAML.unsafe_load, letting authenticated attackers with dialog import access achieve remote code execution by uploading crafted YAML payloads.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Update to the latest ManageIQ version or apply available patches; Red Hat CloudForms is EOL and unsupported.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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