Vulnerability Details CVE-2026-54345
gopacket provides packet processing capabilities for Go. In version 1.6.0 and earlier, the Diameter AVP decoder computes an AVP data length by subtracting a fixed header size from an attacker-controlled AVP Length field, so a vendor-flagged AVP whose Length is smaller than the 12-byte header underflows the unsigned 32-bit value and drives an unbounded allocation of roughly 4 GiB, and two such messages in succession OOM-kill a collector, causing an unauthenticated remote denial of service. This issue is fixed in version 1.6.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 31.5%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-54345
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cpe:2.3:a:gopacket:gopacket:0.1.0
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cpe:2.3:a:gopacket:gopacket:1.0.0
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cpe:2.3:a:gopacket:gopacket:1.1.1
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cpe:2.3:a:gopacket:gopacket:1.2.0
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cpe:2.3:a:gopacket:gopacket:1.3.0
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cpe:2.3:a:gopacket:gopacket:1.3.1
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cpe:2.3:a:gopacket:gopacket:1.4.0
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cpe:2.3:a:gopacket:gopacket:1.5.0
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cpe:2.3:a:gopacket:gopacket:1.6.0