CVE-2021-4235

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Source
https://cve.org/CVERecord?id=CVE-2021-4235
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-4235.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-4235
Aliases
Downstream
AZL (6)
CGA (8)
CLEANSTART (2)
DEBIAN (1)
RHSA (1)
UBUNTU (1)
Published
2022-12-27T22:15:11Z
Modified
2026-10-16T02:51:28Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/go-yaml/yaml

Affected ranges

Type
GIT
Repo
https://github.com/go-yaml/yaml
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
bb4e33bf68bf89cad44d386192cbed201f35b241
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:yaml_project:yaml:*:*:*:*:*:go:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.2.3"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "bb4e33bf68bf89cad44d386192cbed201f35b241"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v2.*
v2.0.0
v2.1.0
v2.1.1
v2.2.0
v2.2.1
v2.2.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-4235.json"