CVE-2021-4235 - CVE House
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Status published Unknown CVE-2021-4235

Denial of service in gopkg.in/yaml.v2

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • @simonferquel

References

More from gopkg.in/yaml.v2

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CVE-2022-3064
Excessive resource consumption in gopkg.in/yaml.v2
Unknown 0

Affected Vendor

gopkg.in/yaml.v2

View all reports →

Affected Software

gopkg.in/yaml.v2, github.com/go-yaml/yaml
Vulnerable Versions:
0

Timeline

Official Publish: December 27th, 2022
Last Modified: April 11th, 2025
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.