CVE-2021-3121
gogoprotobuf: An issue was discovered in GoGo Protobuf before 1.3.2.plugin/unmarshal/unmarshal.go lacks certain index validation, a...
CVE-2021-3121 is fixed in 4 products on 1 platform, first by gogoprotobuf 1.3.2-1, released January 10, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0343
88th percentile
An issue was discovered in GoGo Protobuf before 1.3.2.plugin/unmarshal/unmarshal.go lacks certain index validation, aka the"skippy peanut butter" issue.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| gogoprotobuf · Ubuntu 22.04.1 LTS (jammy) | 1.3.2-1 | gogoprotobuf 1.3.2-1 | Jan 10, 2021 |
| gogoprotobuf · Ubuntu 24.10 (oracular) | 1.3.2-1 | gogoprotobuf 1.3.2-1 | Jan 16, 2026 |
| gogoprotobuf · Ubuntu 25.04 (plucky) | 1.3.2-1 | gogoprotobuf 1.3.2-1 | Jan 16, 2026 |
| golang-github-gogo-protobuf-dev · Ubuntu 22.04.1 LTS (jammy) | 1.3.2-1 | golang-github-gogo-protobuf-dev 1.3.2-1 | Jan 10, 2021 |
| golang-gogoprotobuf-dev · Ubuntu 22.04.1 LTS (jammy) | 1.3.2-1 | golang-gogoprotobuf-dev 1.3.2-1 | Jan 10, 2021 |
| golang-gogoprotobuf-dev · Ubuntu 24.10 (oracular) | 1.3.2-1 | golang-gogoprotobuf-dev 1.3.2-1 | Jan 16, 2026 |
| golang-gogoprotobuf-dev · Ubuntu 25.04 (plucky) | 1.3.2-1 | golang-gogoprotobuf-dev 1.3.2-1 | Jan 16, 2026 |
| kubernetes1.18 · opensuse-leap 15.6 | 1.18.20-150200.5.25.1 | SUSE-SU-2025:02977-1 | Aug 25, 2025 |
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