title: Non-constant time HMAC comparison in Adyen plugin in Saleor
description: Saleor Core is a composable, headless commerce API. Saleor's `validate_hmac_signature` function is vulnerable to timing attacks. Malicious users could abuse this vulnerability on Saleor deployments having the Adyen plugin enabled in order to determine the secret key and forge fake events, this could affect the database integrity such as marking an order as paid when it is not. This issue has been patched in versions 3.7.68, 3.8.40, 3.9.49, 3.10.36, 3.11.35, 3.12.25, and 3.13.16.
problem types: CWE-203: Observable Discrepancy
affected:
{
vendor: saleor
product: saleor
versions:
version: >= 2.11.0, < 3.7.68, status: affected
version: >= 3.8.0, < 3.8.40, status: affected
version: >= 3.9.0, < 3.9.49, status: affected
version: >= 3.10.0, < 3.10.36, status: affected
version: >= 3.11.0, < 3.11.35, status: affected
version: >= 3.12.0, < 3.12.25, status: affected
version: >= 3.13.0, < 3.13.16, status: affected
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.8
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
version: 3.1
]