CVE-2022-28948 gopkg.in/yaml.v3 Denial of Service
An attacker can crash applications using the Go-Yaml library by providing invalid input to the Unmarshal function, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-28948?
CVE-2022-28948 is a high-severity denial of service vulnerability in n/a, published on 19 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in the Unmarshal function in Go-Yaml v3 causes the program to crash when attempting to deserialize invalid input.
Weakness: CWE-502
Which versions are affected by CVE-2022-28948?
3 open source packages ship an affected version, including gopkg.in/yaml.v3. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
gopkg.in/yaml.v3 Go | All versions | 3.0.0-20220521103104-8f96da9f5d5e |
gopkg.in/yaml.v3 Go | All versions | 3.0.1 |
gopkg.in/yaml.v3 Go | All versions | 3.0.1 |
Linux distribution packages (9)
hawk-apiserver SUSE:Linux Enterprise High Availability Extension 16.0 | All versions | 0.1.0+git.1781014483.1c464f2-160000.1.1 |
ignition SUSE:Linux Enterprise Micro 5.1 | All versions | 2.14.0-150300.4.16.1 |
ignition SUSE:Linux Enterprise Micro 5.2 | All versions | 2.14.0-150300.6.16.1 |
ignition SUSE:Linux Enterprise Micro 5.3 | All versions | 2.14.0-150400.4.12.1 |
ignition SUSE:Linux Enterprise Module for HPC 15 SP6 | All versions | 2.14.0-150400.9.12.1 |
ignition SUSE:Linux Enterprise Module for HPC 15 SP7 | All versions | 2.14.0-150400.9.12.1 |
ignition openSUSE:Leap 15.6 | All versions | 2.14.0-150400.9.12.1 |
hawk-apiserver openSUSE:Leap 16.0 | All versions | 0.1.0+git.1781014483.1c464f2-160000.1.1 |
traefik2 openSUSE:Tumbleweed | All versions | 2.11.29-1.1 |
Products include Netapp Astra Trident, Yaml Project Yaml.
How do I fix CVE-2022-28948?
Upgrade gopkg.in/yaml.v3 to a fixed version for your release line: 3.0.0-20220521103104-8f96da9f5d5e or 3.0.1.
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-2022-28948 being exploited?
There is no known exploitation of CVE-2022-28948 in the wild and no public exploit code.
Sources
Also known as AZL-31966, CLEANSTART-2025-JA36317, CLEANSTART-2025-JX95241, CLEANSTART-2025-OQ82091, CLEANSTART-2026-BY73125, DEBIAN-CVE-2022-28948 and 10 more.