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gopkg.in/yaml.v3 Denial of Service

High severity GitHub Reviewed Published May 20, 2022 to the GitHub Advisory Database • Updated Aug 27, 2025

Package

gomod gopkg.in/yaml.v3 (Go)

Affected versions

< 3.0.1

Patched versions

3.0.1

Description

An issue in the Unmarshal function in Go-Yaml v3 can cause a program to panic when attempting to deserialize invalid input.

References

Published by the National Vulnerability Database May 19, 2022
Published to the GitHub Advisory Database May 20, 2022
Reviewed May 25, 2022
Last updated Aug 27, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(80th percentile)

Weaknesses

Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Learn more on MITRE.

CVE ID

CVE-2022-28948

GHSA ID

GHSA-hp87-p4gw-j4gq

Source code

Credits

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