GHSA-h9q6-hc68-35rpHighCVSS 7.5
Denial of service in github.com/shamaton/msgpack
🔗 CVE IDs covered (1)
📋 Description
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 products2
- go/github.com/shamaton/msgpack/v2:<= 2.4.0
- go/github.com/shamaton/msgpack/v3:<= 3.1.0
🔗 References (6)
- https://github.com/golang/vulndb/issues/4513
- https://github.com/shamaton/msgpack/issues/59
- https://securityinfinity.com/research/shamaton-msgpack-oob-panic-fixext-dos-2026
- https://nvd.nist.gov/vuln/detail/CVE-2026-32284
- https://pkg.go.dev/vuln/GO-2026-4513
- https://github.com/advisories/GHSA-h9q6-hc68-35rp