CVE-2026-52903
8.8, highManageIQ Deserialization of Untrusted Data Vulnerability
- CVSS
- 8.8, high high CVSS v3.1
- EPSS, next 30 days
- 0.4% higher than 37.3% of scored CVEs
- Exploitation
- No public evidence
- Published
- 12 Oct 20266 days ago
Description
A deserialization of untrusted data vulnerability was found in ManageIQ. The YamlLoadAliases module overrides YAML.safe_load to silently fall back to YAML.unsafe_load in production when a Psych::DisallowedClass error occurs. An authenticated attacker with dialog import access can exploit this to achieve remote code execution by uploading a crafted YAML payload that triggers the fallback and deserializes arbitrary Ruby objects. Red Hat CloudForms, which was based on ManageIQ, has reached End of Life and is no longer supported. No errata or patches will be issued. This CVE is being assigned for the benefit of the ManageIQ community and downstream consumers.
Details
- Vendor
- ManageIQ and 1 more
- Product
- ManageIQ
- Weakness
- CWE-502 (opens in a new tab)
- Status
- Received
- Updated
- 12 Oct 2026
- Assigner
- secalert@redhat.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References 2
Other references 1
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 18 Oct 2026, not the live upstream state.