CVE-2026-54332

Summary

gopacket provides packet processing capabilities for Go. In version 1.6.0 and earlier, the sFlow ExtendedGatewayFlow decoder in layers/sflow.go reads an attacker-controlled 32-bit community count and AS path member count and sizes a slice allocation from those counts without bounding them against the bytes remaining in the datagram, so a 104-byte UDP datagram can drive an allocation of up to 16 GiB and cause an unauthenticated remote denial of service. This issue is fixed in version 1.6.1.

Affected Software

Weaknesses

• CWE-770: CWE-770: Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/gopacket/gopacket/security/advisories/GHSA-g6v3-7xmc-w563

References

• https://github.com/gopacket/gopacket/security/advisories/GHSA-g6v3-7xmc-w563
• https://github.com/gopacket/gopacket/commit/76119086f5936aacd7088bdf97d565501bb6c4cc
• https://github.com/gopacket/gopacket/releases/tag/v1.6.1

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