CVE-2021-32742

HIGH

Vapor <4.47.2 - Memory Corruption

Title source: llm

Description

Vapor is a web framework for Swift. In versions 4.47.1 and prior, bug in the `Data.init(base32Encoded:)` function opens up the potential for exposing server memory and/or crashing the server (Denial of Service) for applications where untrusted data can end up in said function. Vapor does not currently use this function itself so this only impact applications that use the impacted function directly or through other dependencies. The vulnerability is patched in version 4.47.2. As a workaround, one may use an alternative to Vapor's built-in `Data.init(base32Encoded:)`.

Scores

CVSS v3 7.5
EPSS 0.0037
EPSS Percentile 58.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-502
Status published

Affected Products (2)

vapor_project/vapor < 4.47.2
SwiftURL/github.com/vapor/vapor < 4.47.2SwiftURL

Timeline

Published Jul 09, 2021
Tracked Since Feb 18, 2026