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CVE-2026-55412 is a server-side request forgery vulnerability in ToolJet Cloud versions before 3.20.178-lts. The flaw affects the RestAPI data source component, which makes HTTP requests from the server. Its private-address filter validates the requested hostname string but does not validate the address obtained after DNS resolution. An authenticated user can use a DNS hostname resolving to the Azure Instance Metadata Service link-local address to bypass the filter and cause server-side requests to that service.
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No public exploit code observed for this vulnerability.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.