Vulnerability 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.
CVSS Score
HIGH
References
- https://github.com/golang/vulndb/issues/4513
- https://github.com/shamaton/msgpack/issues/59
- https://pkg.go.dev/vuln/GO-2026-4513
- https://securityinfinity.com/research/shamaton-msgpack-oob-panic-fixext-dos-2026
FAQ
What is CVE-2026-32284?
CVE-2026-32284 is a vulnerability with a CVSS score of 7.5 (HIGH). 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, allow...
How severe is CVE-2026-32284?
CVE-2026-32284 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32284?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.