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6 vulnerabilities by gopacket
CVE-2026-65819 (GCVE-0-2026-65819)
Vulnerability from nvd – Published: 2026-08-07 19:19 – Updated: 2026-08-11 01:07
VLAI
EPSS
VEX
Title
gopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 01:07 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/gopacket/gopacket/security/adv… | x_refsource_CONFIRM |
| https://github.com/gopacket/gopacket/commit/210f2… | x_refsource_MISC |
| https://github.com/gopacket/gopacket/releases/tag… | x_refsource_MISC |
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CVE-2026-54345 (GCVE-0-2026-54345)
Vulnerability from nvd – Published: 2026-07-28 16:14 – Updated: 2026-07-28 17:11
VLAI
EPSS
VEX
Title
GoPacket's Diameter AVP decoder: uint32 underflow on vendor header size leads to unbounded ~4 GiB allocation (unauthenticated remote DoS)
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 17:11 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/gopacket/gopacket/security/adv… | x_refsource_CONFIRM |
| https://github.com/gopacket/gopacket/commit/14585… | x_refsource_MISC |
| https://github.com/gopacket/gopacket/releases/tag… | x_refsource_MISC |
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CVE-2026-54332 (GCVE-0-2026-54332)
Vulnerability from nvd – Published: 2026-07-28 16:17 – Updated: 2026-07-28 17:28
VLAI
EPSS
VEX
Title
GoPacket's sFlow ExtendedGatewayFlow decoder: unbounded attacker-controlled allocation (104-byte UDP datagram -> up to 16 GiB make) -> unauthenticated remote DoS
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 17:28 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/gopacket/gopacket/security/adv… | x_refsource_CONFIRM |
| https://github.com/gopacket/gopacket/commit/76119… | x_refsource_MISC |
| https://github.com/gopacket/gopacket/releases/tag… | x_refsource_MISC |
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CVE-2026-65819 (GCVE-0-2026-65819)
Vulnerability from cvelistv5 – Published: 2026-08-07 19:19 – Updated: 2026-08-11 01:07
VLAI
EPSS
VEX
Title
gopacket: Multiple layer decoders panic on crafted packets (out-of-bounds/underflow) enabling unauthenticated remote DoS via DecodingLayerParser
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 01:07 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/gopacket/gopacket/security/adv… | x_refsource_CONFIRM |
| https://github.com/gopacket/gopacket/commit/210f2… | x_refsource_MISC |
| https://github.com/gopacket/gopacket/releases/tag… | x_refsource_MISC |
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CVE-2026-54332 (GCVE-0-2026-54332)
Vulnerability from cvelistv5 – Published: 2026-07-28 16:17 – Updated: 2026-07-28 17:28
VLAI
EPSS
VEX
Title
GoPacket's sFlow ExtendedGatewayFlow decoder: unbounded attacker-controlled allocation (104-byte UDP datagram -> up to 16 GiB make) -> unauthenticated remote DoS
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 17:28 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/gopacket/gopacket/security/adv… | x_refsource_CONFIRM |
| https://github.com/gopacket/gopacket/commit/76119… | x_refsource_MISC |
| https://github.com/gopacket/gopacket/releases/tag… | x_refsource_MISC |
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CVE-2026-54345 (GCVE-0-2026-54345)
Vulnerability from cvelistv5 – Published: 2026-07-28 16:14 – Updated: 2026-07-28 17:11
VLAI
EPSS
VEX
Title
GoPacket's Diameter AVP decoder: uint32 underflow on vendor header size leads to unbounded ~4 GiB allocation (unauthenticated remote DoS)
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 17:11 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/gopacket/gopacket/security/adv… | x_refsource_CONFIRM |
| https://github.com/gopacket/gopacket/commit/14585… | x_refsource_MISC |
| https://github.com/gopacket/gopacket/releases/tag… | x_refsource_MISC |
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