Description (CNA)
The msgpack decoder fails to properly validate the input buffer length when processing truncated fixext data (format codes 0xd4-0xd8). This can lead to an out-of-bounds read and a runtime panic, allowing a denial of service attack.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| github.com/shamaton/msgpack / github.com/shamaton/msgpack | affected |
| github.com/shamaton/msgpack/v2 / github.com/shamaton/msgpack/v2 | affected 0 before 2.4.1 |
| github.com/shamaton/msgpack/v3 / github.com/shamaton/msgpack/v3 | affected 0 before 3.1.1 |
CWE
No CWE identifiers supplied.
References
- https://github.com/shamaton/msgpack/issues/59
- https://github.com/golang/vulndb/issues/4513
- https://pkg.go.dev/vuln/GO-2026-4513
ADP enrichment
No English description supplied.