CVE-2021-4235
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Denial of service in gopkg.in/yaml.v2
Due to unbounded alias chasing, a maliciously crafted YAML file can cause the system to consume significant system resources. If parsing user input, this may be used as a denial of service vector.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
gopkg.in/yaml.v2
- Vendor
- gopkg.in/yaml.v2
- Product
- gopkg.in/yaml.v2
- Platforms
- Unknown
- Default status
unaffected- Package
- gopkg.in/yaml.v2
- Package collection
- https://pkg.go.dev
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 2.2.3 | Unavailable | None listed |
github.com/go-yaml/yaml
- Vendor
- github.com/go-yaml/yaml
- Product
- github.com/go-yaml/yaml
- Platforms
- Unknown
- Default status
affected- Package
- github.com/go-yaml/yaml
- Package collection
- https://pkg.go.dev
No explicit version tuples; consult this entry's default status.