CVE-2019-11254
MEDIUM6.5EPSS 0.12%Excessive resource consumption in YAML parsing in gopkg.in/yaml.v2
Published: 12/20/2021Modified: 4/28/2026
Description
The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML.
Affected packages (5)
- Debian/kubernetesfrom 0, < 1.17.4-1
- Go/github.com/go-yaml/yamlfrom 0, <= 2.1.0
- Go/github.com/go-yaml/yamlfrom 0
- Go/gopkg.in/yaml.v2from 0, < 2.2.8
- Go/gopkg.in/yaml.v2from 0, < 2.2.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-11254
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-11254
- WEBhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18496
- WEBhttps://github.com/go-yaml/yaml/commit/53403b58ad1b561927d19068c655246f2db79d48
- WEBhttps://github.com/go-yaml/yaml/pull/555
- WEBhttps://github.com/kubernetes/kubernetes/issues/89535
- WEBhttps://github.com/kubernetes/kubernetes/pull/87467/commits/b86df2bec4f377afc0ca03482ffad2f0a49a83b8
- WEBhttps://groups.google.com/d/msg/kubernetes-announce/ALL9s73E5ck/4yHe8J-PBAAJ
- WEBhttps://pkg.go.dev/vuln/GO-2020-0036
- WEBhttps://security.netapp.com/advisory/ntap-20200413-0003