CVE-2022-39219 — Bifrost
HIGHCVE-2022-39219 is a high-severity (CVSS 8.5) Improper Authentication vulnerability in github.com/brokercap/Bifrost. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for github.com/brokercap/Bifrost — see the affected versions and patch details below.
Bifrost users using basic authntication can bypass write permission limit
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
Exploitation and automatability from CISA’s SSVC triage for CVE-2022-39219.
EPSS Exploitation Probability
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
github.com/brokercap/BifrostReal-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
Bifrost is a middleware package which can synchronize MySQL/MariaDB binlog data to other types of databases. Versions 1.8.6-release and prior are vulnerable to authentication bypass when using HTTP basic authentication. This may allow group members who only have read permissions to write requests when they are normally forbidden from doing so. Version 1.8.7-release contains a patch. There are currently no known workarounds.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/brokercap/Bifrost | all versions | 1.8.7-releasego get github.com/brokercap/Bifrost@v1.8.7-release |
Affected Products
bifrostxbifrostResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/brokercap/Bifrost, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/brokercap/Bifrost to 1.8.7-release or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-39219 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Frequently Asked Questions
Is CVE-2022-39219 in your dependencies?
Find it across Go, including transitive dependencies.