CVE-2026-54332Disclosure(gopacket / gopacket)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • gopacket

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
gopacket

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-11: 1Technical Details · 2026-08-11: 108-11
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • connect24h@connect24h
    Disclosure

    勘弁してほしい。104バイトで最大16GiBを確保させる。 CVE-2026-54332は、GoPacketのsFlow ExtendedGatewayFlow decoderが攻撃者指定値を無制限にmakeへ渡し、104-byte UDP datagramだけで認証不要のremote DoSを起こせる問題。小さな入力でメモリを吹き飛ばす、嫌な非対称性だ。 ¥sFlowを受けている組織は、直接依存だけでなくtransitive dependencyまで見た方がいい。#セキュリティ ソース: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54332

    Post summary

    CVE‑2026‑54332 is a remote DoS flaw in GoPacket’s sFlow ExtendedGatewayFlow decoder that lets an attacker trigger a memory blow‑up with a 104‑byte UDP packet without authentication.

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CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appgopacketgopacket-go-

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