title: Unauthenticated Denial of Service in the octokit/webhooks library
description: octokit/webhooks is a GitHub webhook events toolset for Node.js. Starting in 9.26.0 and prior to 9.26.3, 10.9.2, 11.1.2, and 12.0.4, there is a problem caused by an issue with error handling in the @octokit/webhooks library because the error can be undefined in some cases. The resulting request was found to cause an uncaught exception that ends the nodejs process.  The bug is fixed in octokit/webhooks.js 9.26.3, 10.9.2, 11.1.2, and 12.0.4, app.js 14.02, octokit.js 3.1.2, and Protobot 12.3.3.
problem types: CWE-755: Improper Handling of Exceptional Conditions
affected:
{
vendor: octokit
product: webhooks.js
versions:
version: >= 9.26.0, < 9.26.3, status: affected
version: >= 10.9.0, < 10.9.2, status: affected
version: >= 11.1.0, < 11.1.2, status: affected
version: >= 12.0.0, < 12.0.4, status: affected
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 5.4
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
version: 3.1
]