v8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of 'a' + 'a'.repeat(i) + 'A' with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.
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Tue, 22 Apr 2025 18:15:00 +0000
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2022-08-02T20:10:11.000Z
Updated: 2025-04-22T17:45:31.262Z
Reserved: 2022-07-15T00:00:00.000Z
Link: CVE-2022-35923

Updated: 2024-08-03T09:51:58.523Z

Status : Modified
Published: 2022-08-02T20:15:09.947
Modified: 2024-11-21T07:11:58.283
Link: CVE-2022-35923

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