Denial of Service Vulnerability in gopacket by Google
CVE-2026-54345

6.9MEDIUM

Key Information:

Vendor

Gopacket

Status
Gopacket
Vendor
CVE Published:
28 July 2026

What is CVE-2026-54345?

The gopacket library, which provides packet processing for Go applications, contains a vulnerability that leads to a denial of service condition. In versions prior to 1.6.1, the Diameter AVP decoder miscalculates data lengths based on an attacker-controlled field, allowing for unbounded memory allocation. This can result in out-of-memory (OOM) errors when two specially crafted messages are processed in succession, effectively crashing the service. Users are advised to upgrade to version 1.6.1 or later to mitigate this risk.

Affected Version(s)

gopacket < 1.6.1

References

https://github.com/gopacket/gopacket/security/advisories/...
x_refsource_CONFIRM
https://github.com/gopacket/gopacket/commit/145859d0eaee1...
x_refsource_MISC
https://github.com/gopacket/gopacket/releases/tag/v1.6.1
x_refsource_MISC

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.