CVE-2023-25392 is a medium-severity (CVSS 5.9) CWE-295 vulnerability in bigflow. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for bigflow — see the affected versions and patch details below.
Allegro Tech BigFlow vulnerable to Missing SSL Certificate Validation
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-25392.
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
bigflowReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
Allegro Tech BigFlow prior to 1.6.0 is vulnerable to Missing SSL Certificate Validation.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | bigflow | all versions | 1.6.0pip install --upgrade 'bigflow==1.6.0' |
Affected Products
bigflowallegroResearch 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 bigflow, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update bigflow to 1.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-25392 is resolved across your whole dependency graph.
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
Is CVE-2023-25392 in your dependencies?
Find it across PyPI, including transitive dependencies.