Multiple outlets report that CVE-2026-5027, a high-severity vulnerability in Langflow, is being actively exploited in the wild. The issue is described as a path traversal flaw that can allow an unauthenticated attacker to write files to arbitrary locations on affected servers. VulnCheck is cited as identifying ongoing exploitation activity. The vulnerability is assigned a CVSS score of 8.8. Bleeping Computer similarly reports that attackers take advantage of the flaw to write arbitrary files on exposed systems, indicating real-world targeting rather than purely theoretical risk.
Both accounts focus on the same core impact—file writing via path traversal—which can potentially enable further compromise depending on the target environment and where files are placed. The outlets also agree that Langflow is the affected open-source low-code platform used to build AI applications. The flaw is described as unpatched in the reporting, underscoring the need for mitigation or updates to reduce exposure.
