| Package | Affected versions | Patched versions |
|---|---|---|
| gradio | ≥ 4.38.0, ≤ 5.0.0-beta.2 | |
| gradio | = 2024-09-18 |
A Regular Expression Denial of Service (ReDoS) vulnerability exists in the gradio-app/gradio repository, affecting the gr.Datetime component. The affected version is git commit 98cbcae. The vulnerability arises from the use of a regular expression ^(?:\s*now\s*(?:-\s*(\d+)\s*([dmhs]))?)?\s*$ to process user input. In Python's default regex engine, this regular expression can take polynomial time to match certain crafted inputs. An attacker can exploit this by sending a crafted HTTP request, causing the gradio process to consume 100% CPU and potentially leading to a Denial of Service (DoS) condition on the server.
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