CVE-2026-54332: gopacket provides packet processing capabilities for Go
Affects gopacketSource GCVE Database
Not known to be exploited · CVSS 7.5 High · fixed in 1.6.1 : patch gopacket soon.
Data as of 5 Nov 2026, 23:24 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 56% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10golang-github-gopacket-gopacketpkg:deb/ubuntu/golang-github-gopacket-gopacket?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10gopacketpkg:deb/ubuntu/gopacket?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgolang-github-gopacket-gopacketpkg:deb/ubuntu/golang-github-gopacket-gopacket?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgopacketpkg:deb/ubuntu/gopacket?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgolang-github-gopacket-gopacketpkg:deb/ubuntu/golang-github-gopacket-gopacket?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgopacketpkg:deb/ubuntu/gopacket?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to gopacket version 1.6.1 or later, where this vulnerability has been fixed. No other mitigation is indicated by the vendor advisory.
Description
gopacket versions 1.6.0 and earlier have a vulnerability in the sFlow ExtendedGatewayFlow decoder that allows an attacker to cause a denial of service by triggering a large memory allocation from a small UDP datagram. This issue is fixed in version 1.6.1.