CVE-2026-54332 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-54332MEDIUM

GoPacket's sFlow ExtendedGatewayFlow decoder: unbounded attacker-controlled allocation (104-byte UDP datagram -> up to 16 GiB make) -> unauthenticated remote DoS

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   N   N   L    6.9   .0043   36.0     —

AFFECTED
  Product   Versions   Fixed
  gopacket  < 1.6.1 –  —

TIMELINE
  Jun 12  Reserved by GitHub_M
  Jul 28  EXPLOIT PUBLISHED — CVE-2026-54332 (gopacket). Public exploit reference added.
  Jul 28  Published (CNA: GitHub_M)

CWE-770 · CNA: GitHub_M · CVSS v4.0 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 12, 2026	Reserved	Reserved by GitHub_M
July 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-54332 (gopacket). Public exploit reference added.
July 28, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
gopacket	gopacket	—	< 1.6.1	—

Weaknesses

CWE-770

References (3)

https://github.com/gopacket/gopacket/commit/76119086f5936aacd7088bdf97d565501bb6c4cc [Patch]
https://github.com/gopacket/gopacket/releases/tag/v1.6.1 [Release Notes]
https://github.com/gopacket/gopacket/security/advisories/GHSA-g6v3-7xmc-w563 [Exploit, Third Party Advisory]

Authoritative record: CVE-2026-54332 at cve.org

Vendors: gopacket

Weaknesses: CWE-770

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-54332 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.