CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
50.0%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
v8n_project | v8n | * | cpe:2.3:a:v8n_project:v8n:*:*:*:*:*:node.js:*:* |