CVE-2026-112178
MISP Proposal ACL Bypass: Incomplete Distribution Level Check in Shadow Attribute Access Control
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Description
MISP contains an access control flaw in the proposal (shadow attribute) visibility logic. The authorization check accepted any attribute or object carrying one of the user's sharing groups without verifying the distribution level, and denied the owning organisation access to proposals on its own organisation-only attributes. - A user belonging to a sharing group could view proposals on attributes or objects with that sharing group, regardless of the attribute's distribution level (levels 1-3 should restrict visibility) - The owning organisation could not view proposals on its own org-only attributes Security impact: Unauthorized disclosure of proposed attribute changes to users who should not have access based on distribution level restrictions. Affected: <2.5.48
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
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Patch and advisory references
References (1)
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CVSS
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