Description
gorilla/schema converts structs to and from form values. Prior to version 1.4.1 Running `schema.Decoder.Decode()` on a struct that has a field of type `[]struct{...}` opens it up to malicious attacks regarding memory allocations, taking advantage of the sparse slice functionality. Any use of `schema.Decoder.Decode()` on a struct with arrays of other structs could be vulnerable to this memory exhaustion vulnerability. Version 1.4.1 contains a patch for the issue.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| gorilla | schema | < 1.4.1 |
| gorillatoolkit | schema | < 1.4.1 |
References
- https://github.com/gorilla/schema/blob/main/decoder.go#L223
- https://github.com/gorilla/schema/commit/cd59f2f12cbdfa9c06aa63e425d1fe4a806967ff
- https://github.com/gorilla/schema/security/advisories/GHSA-3669-72x9-r9p3
- https://github.com/gorilla/schema/blob/main/decoder.go#L223
- https://github.com/gorilla/schema/commit/cd59f2f12cbdfa9c06aa63e425d1fe4a806967ff
- https://github.com/gorilla/schema/security/advisories/GHSA-3669-72x9-r9p3
Timeline
- Published
- Jul 1, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Deferred