
CVE catalog
CVE-2026-65819
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 buffer
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.66% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gopacket | sid | 1.1.19-6.2 | vulnerable |
| Debian | gopacket | forky | 1.1.19-6.2 | vulnerable |
| Debian | gopacket | trixie | 1.1.19-6.2 | vulnerable |
| Debian | gopacket | bookworm | 1.1.19-3 | vulnerable |
| Debian | golang-github-gopacket-gopacket | sid | 1.3.0-2 | vulnerable |
| Debian | golang-github-gopacket-gopacket | forky | 1.3.0-2 | vulnerable |
| Debian | golang-github-gopacket-gopacket | trixie | 1.3.0-2 | vulnerable |
| Debian | golang-github-gopacket-gopacket | bookworm | 1.0.0-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gopacket | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | gopacket | source | forky | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | gopacket | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | gopacket | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | golang-github-gopacket-gopacket | source | sid | (unfixed) | not yet assigned | Not reported | [1144416] |
| Debian | golang-github-gopacket-gopacket | source | forky | (unfixed) | not yet assigned | Not reported | [1144416] |
| Debian | golang-github-gopacket-gopacket | source | trixie | (unfixed) | not yet assigned | Not reported | [1144416] |
| Debian | golang-github-gopacket-gopacket | source | bookworm | (unfixed) | not yet assigned | Not reported | [1144416] |
Notes
[trixie] gopacket: Minor issue [bookworm] gopacket: Minor issue [trixie] golang-github-gopacket-gopacket: Minor issue [bookworm] golang-github-gopacket-gopacket: Limited support
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-google-gopacket-dev]Affected
Source package: [gopacket]
Details (2)
1.1.19-3· all · bookwormAffected
nvd · gopacket · debian · bookworm; nvd · gopacket · debian · 12
1.1.19-3· all · bookwormAffected
nvd · gopacket · debian · bookworm; nvd · gopacket · debian · 12
- [golang-github-gopacket-gopacket-dev]Affected
Source package: [golang-github-gopacket-gopacket]
Details (2)
1.0.0-1· all · bookwormAffected
nvd · golang-github-gopacket-gopacket · debian · bookworm; nvd · golang-github-gopacket-gopacket · debian · 12
1.0.0-1· all · bookwormAffected
nvd · golang-github-gopacket-gopacket · debian · bookworm; nvd · golang-github-gopacket-gopacket · debian · 12
[Debian 13 (Trixie)]
- [golang-github-google-gopacket-dev]Affected
Source package: [gopacket]
Details (2)
1.1.19-6.2· all · trixieAffected
nvd · gopacket · debian · 13
1.1.19-6.2· all · trixieAffected
nvd · gopacket · debian · 13
- [golang-github-gopacket-gopacket-dev]Affected
Source package: [golang-github-gopacket-gopacket]
Details (2)
1.3.0-2· all · trixieAffected
nvd · golang-github-gopacket-gopacket · debian · 13
1.3.0-2· all · trixieAffected
nvd · golang-github-gopacket-gopacket · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-65819]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-65819]
- [https://security-tracker.debian.org/tracker/CVE-2026-65819]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-65819.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]