CVE-2021-4235 – github.com/go-yaml/yaml

Package

Manager: go
Name: github.com/go-yaml/yaml
Vulnerable Version: >=0 <=2.1.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00029 pctl0.06615

Details

YAML Go package vulnerable to denial of service Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.

Metadata

Created: 2022-12-28T00:30:23Z
Modified: 2025-04-11T23:46:34Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-r88r-gmrh-7j83/GHSA-r88r-gmrh-7j83.json
CWE IDs: []
Alternative ID: GHSA-r88r-gmrh-7j83
Finding: F002
Auto approve: 1