CVE-2026-65819
HIGHgopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser
Title source: cnaDescription
gopacket provides packet processing capabilities for Go. Through version 1.7.0, multiple layer decoders use attacker-controlled lengths, counts, or offsets before validating them against packet buffers, allowing a crafted packet decoded through DecodingLayerParser or DecodeFromBytes to trigger an unrecovered panic and remotely deny service. A patch commit is available at 210f25f.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/gopacket/gopacket/security/advisories/GHSA-8mcr-459q-5mx2
X_Refsource_Misc x_refsource_misc
https://github.com/gopacket/gopacket/commit/210f25fb9b3ca1af2eb649936f78ad6991b6c9c5
X_Refsource_Misc x_refsource_misc
https://github.com/gopacket/gopacket/releases/tag/v1.7.0
Scores
CVSS v3
7.5
EPSS
0.0037
EPSS Percentile
29.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
CWE-400
Status
published
Products (1)
gopacket/gopacket
<= 1.7.0
Published
Aug 07, 2026
Tracked Since
Aug 08, 2026