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

Tue, 22 Apr 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

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

cve-icon Vulnrichment

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

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T07:11:58.283

Link: CVE-2022-35923

cve-icon Redhat

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