yaml package for Go can consume excessive amounts of CPU or memory

HIGH 7.5CVE-2022-3064 · GHSA-6q6q-88xp-6f2r · GO-2022-0956 · Published 27/12/2022 · updated 17/06/2026

In short

CVE-2022-3064 is a HIGH (CVSS 7.5) vulnerability affecting gopkg.in/yaml.v2, yaml (yaml project).
Chance of exploitation in the next 30 days (EPSS): 1.9%, higher than 79.4% of all vulnerabilities.
Fix: update to 2.2.4 or later.

Package	Affected versions	Patched versions
gopkg.in/yaml.v2 Go	`< 2.2.4`	`2.2.4`
yaml yaml_project	`< 2.2.4`	`2.2.4`

Parsing malicious or large YAML documents can consume excessive amounts of CPU or memory

NVD description

Parsing malicious or large YAML documents can consume excessive amounts of CPU or memory.

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