CVEvulnerability
CVE-2026-32284
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-26
- Last modified
- 2026-10-07
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-125
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 configurations
• shamaton msgpack (<= 3.1.2)
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://github.com/golang/vulndb/issues/4513 Issue Tracking, Third Party Advisory
- https://github.com/shamaton/msgpack/issues/59 Issue Tracking, Vendor Advisory
- https://pkg.go.dev/vuln/GO-2026-4513 Third Party Advisory
- https://securityinfinity.com/research/shamaton-msgpack-oob-panic-fixext-dos-2026 Exploit, Third Party Advisory