PoC Index85,127 CVEs with PoCs

CVE-2026-118772

joi: quadratic-time split in `string().email({ multiple: true })` allows denial of service

HIGH 7.5EPSS 0.5%

joi is a schema description language and data validator for JavaScript. From 17.1.1 until 17.13.9 and 18.3.1, the Joi.string().email({ multiple: true }) rule uses a separator regular expression whose leading whitespace quantifier is retried at every position in a long whitespace run that contains no separator, causing quadratic work during String.prototype.split. The behavior applies to the default separator and every custom separator. Applications that validate attacker-controlled values with the multiple option and no effective prior length limit can have the Node.js event loop blocked for seconds by one request, preventing other work. A .max() rule is not sufficient when abortEarly: false allows the email rule to run after the maximum-length check fails. This vulnerability is fixed in versions 17.13.9 and 18.3.1.

Affected
hapijs · @hapi · joi
CVSS v3.1 GITHUB
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.47% chance of exploitation in the next 30 days, 40th percentile
Published
2026-10-29

Proof-of-concept exploits (1)

CVE references

References