{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-48519: Langflow: Unauthenticated RCE in Shareable Playgrounds","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-48519","status":"final","version":"1","initial_release_date":"2026-06-23T16:25:09.927Z","current_release_date":"2026-06-23T17:02:49.695Z","revision_history":[{"date":"2026-06-23T16:25:09.927Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the \"Shareable Playground\" (or \"Public Flows\" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessing a link. Specifically, it enables the route /api/v1/build_public_tmp to execute any public flow, given a public flow ID. When the route executes the flow, it allows for providing arbitrary custom Python code as the nodes code, inside the JSON payload. The vulnerable field is data.nodes[X].data.node.template.code.value. This vulnerability is fixed in 1.9.2.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-48519 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-48519"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-48519"},{"category":"external","summary":"https://github.com/langflow-ai/langflow/security/advisories/GHSA-v5ff-9q35-q26f","url":"https://github.com/langflow-ai/langflow/security/advisories/GHSA-v5ff-9q35-q26f"}]},"product_tree":{"branches":[{"category":"vendor","name":"langflow-ai","branches":[{"category":"product_name","name":"langflow","branches":[{"category":"product_version","name":"< 1.9.2","product":{"name":"langflow-ai langflow < 1.9.2","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:langflow-ai:langflow:\\<_1.9.2:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-48519","title":"Langflow: Unauthenticated RCE in Shareable Playgrounds","notes":[{"category":"description","text":"Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the \"Shareable Playground\" (or \"Public Flows\" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessing a link. Specifically, it enables the route /api/v1/build_public_tmp to execute any public flow, given a public flow ID. When the route executes the flow, it allows for providing arbitrary custom Python code as the nodes code, inside the JSON payload. The vulnerable field is data.nodes[X].data.node.template.code.value. This vulnerability is fixed in 1.9.2.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","baseScore":9.6,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}