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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-08-02T20:10:11

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

Reserved: 2022-07-15T00:00:00

Link: CVE-2022-35923

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-08-02T20:15:09.947

Modified: 2023-07-21T20:49:08.377

Link: CVE-2022-35923

cve-icon Redhat

No data.