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

High 7.5 Published 27 Dec 2022 Updated 14 Apr 2025

Attackers can cause denial of service by submitting malicious or large YAML documents to applications using the gopkg.in/yaml.v2 library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2022-3064?

CVE-2022-3064 is a high-severity denial of service vulnerability in gopkg.in/yaml.v2, published on 27 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-400

Which versions are affected by CVE-2022-3064?

3 open source packages ship an affected version, including gopkg.in/yaml.v2. It affects 1 product.

Package	Affected	Fixed in
`gopkg.in/yaml.v2` Go	All versions	`2.2.4`
`gopkg.in/yaml.v2` Go	All versions	`2.2.4`
`gopkg.in/yaml.v2` Go	All versions	`2.2.4`

Linux distribution packages (16)

`rhc` Red Hat:enterprise_linux:8::appstream	All versions	`1:0.2.5-1.el8_10`
`rhc-debuginfo` Red Hat:enterprise_linux:8::appstream	All versions	`1:0.2.5-1.el8_10`
`rhc-debugsource` Red Hat:enterprise_linux:8::appstream	All versions	`1:0.2.5-1.el8_10`
`rhc` Red Hat:enterprise_linux:9::appstream	All versions	`1:0.2.5-1.el9_5`
`rhc-debuginfo` Red Hat:enterprise_linux:9::appstream	All versions	`1:0.2.5-1.el9_5`
`rhc-debugsource` Red Hat:enterprise_linux:9::appstream	All versions	`1:0.2.5-1.el9_5`
`rhc-debuginfo` Red Hat:enterprise_linux:9::crb	All versions	`1:0.2.5-1.el9_5`
`rhc-debugsource` Red Hat:enterprise_linux:9::crb	All versions	`1:0.2.5-1.el9_5`
`rhc-devel` Red Hat:enterprise_linux:9::crb	All versions	`1:0.2.5-1.el9_5`
`etcd` Red Hat:openstack:17.0::el9	All versions	`0:3.4.14-3.el9ost`
`etcd-debuginfo` Red Hat:openstack:17.0::el9	All versions	`0:3.4.14-3.el9ost`
`etcd-debugsource` Red Hat:openstack:17.0::el9	All versions	`0:3.4.14-3.el9ost`
`toolbox` Red Hat:rhel_eus:9.2::appstream	All versions	`0:0.0.99.4-1.el9_2`
`toolbox-debuginfo` Red Hat:rhel_eus:9.2::appstream	All versions	`0:0.0.99.4-1.el9_2`
`toolbox-debugsource` Red Hat:rhel_eus:9.2::appstream	All versions	`0:0.0.99.4-1.el9_2`
`toolbox-tests` Red Hat:rhel_eus:9.2::appstream	All versions	`0:0.0.99.4-1.el9_2`

Products include Yaml Project Yaml.

How do I fix CVE-2022-3064?

Upgrade gopkg.in/yaml.v2 to 2.2.4 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-3064 being exploited?

There is no known exploitation of CVE-2022-3064 in the wild and no public exploit code.

Sources

Also known as AZL-40841, AZL-43939, AZL-43993, AZL-44035, AZL-44067, AZL-44514 and 11 more.