Denial of service in github.com/shamaton/msgpack
Denial of service in github.com/shamaton/msgpack
02 / AFFECTED SOFTWARE
Affected packages
3 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
Denial of service in github.com/shamaton/msgpack
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.
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.
05 / REFERENCES
Further evidence
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32284.json
- https://github.com/golang/vulndb/issues/4513
- https://github.com/shamaton/msgpack/issues/59
- https://nvd.nist.gov/vuln/detail/CVE-2026-32284
- https://pkg.go.dev
- https://pkg.go.dev/vuln/GO-2026-4513
- https://securityinfinity.com/research/shamaton-msgpack-oob-panic-fixext-dos-2026
- https://github.com/advisories/GHSA-h9q6-hc68-35rp
- https://github.com/shamaton/msgpack