CVE-2021-4437 LOW

CVE-2021-4437: dbartholomae lambda-middleware frameguard JSON Mime-Type JsonDeserializer.ts redos

Vendor Dbartholomae
Product lambda-middleware frameguard
Weakness CWE-1333
Published February 12, 2024
Last update May 6, 2025
View on NVD All CVEs

CVSS base score

3.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

A vulnerability, which was classified as problematic, has been found in dbartholomae lambda-middleware frameguard up to 1.0.4. Affected by this issue is some unknown functionality of the file packages/json-deserializer/src/JsonDeserializer.ts of the component JSON Mime-Type Handler. The manipulation leads to inefficient regular expression complexity. Upgrading to version 1.1.0 is able to address this issue. The patch is identified as f689404d830cbc1edd6a1018d3334ff5f44dc6a6. It is recommended to upgrade the affected component. VDB-253406 is the identifier assigned to this vulnerability.

Key dates

02Disclosure timeline

February 12, 2024 CVE published
May 6, 2025 Record updated