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HIGH severity

Hybrid Group Gobot Improper Certificate Validation vulnerabilityGHSA-vfxc-r2gx-v2vq

HIGHFix: hybridgroup/gobot@c1aa4f8

GHSA-vfxc-r2gx-v2vq is a high-severity (CVSS 7.5) CWE-295 vulnerability in github.com/hybridgroup/gobot. A fix is available for github.com/hybridgroup/gobot — see the affected versions and patch details below.

Also known asCVE-2019-12496GO-2021-0083
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs54th percentile — riskier than 54% of all scored CVEsHighest risk
0.00%0.40%0.81%1.21%0.2%0.7%0.7%0.7%May 26Nov 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/hybridgroup/gobot

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

An issue was discovered in Hybrid Group Gobot before 1.13.0. The mqtt subsystem skips verification of root CA certificates by default.

Specific Go Packages Affected

github.com/hybridgroup/gobot/platforms/mqtt

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/hybridgroup/gobotall versions1.12.1-0.20190521122906-c1aa4f867846go get github.com/hybridgroup/gobot@v1.12.1-0.20190521122906-c1aa4f867846

Affected Products

1 product · 1 configurations
Application
gobothybridgroup
< 1.13.0
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/hybridgroup/gobot, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/hybridgroup/gobot to 1.12.1-0.20190521122906-c1aa4f867846 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vfxc-r2gx-v2vq is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

An issue was discovered in Hybrid Group Gobot before 1.13.0. The mqtt subsystem skips verification of root CA certificates by default. ### Specific Go Packages Affected github.com/hybridgroup/gobot/platforms/mqtt
O3 Security · Impact-Aware SCA

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Hybrid Group Gobot Improper Certificate Validation…