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A Regular Expression Denial of Service (ReDoS) vulnerability exists in the gradio-app/gradio repository, affecting the gr.Datetime component. The vulnerability was discovered in git commit 98cbcae. This security issue stems from the implementation of a specific regular expression pattern used for processing user input (NVD).
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. The vulnerability has been assigned a CVSS v3.0 base score of 7.5 (HIGH) with the vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (NVD).
An attacker can exploit this vulnerability 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 (NVD).
Source: This report was generated using AI
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