# Security Policy ## Supported Versions The following versions are currently being supported with security updates. | Version | Supported | | ------- | ------------------ | | 2.x.x | :white_check_mark: | | < 2.0 | :x: | ## Reporting a Vulnerability Feel free to submit issues to info at mustangproject.org with [security] indicated in the subject. We may ask back questions but we usually open (or communicate about) an issue (potentially in a private location you would be provided with access to) and decide on the severity within two working days. Please indicate * a proof of concept, if possible * If any of the information you submit, e.g. an invoice which can not be [anonymized](https://github.com/ZUGFeRD/einvoice-anonymizer), is confidential * A quick justification why you require a fix in a older version than he most up to date one, if you can not update to the most recent version * If you require encrypted communication (our GPG fingerprint will likely be fingerprinted C513 CD93 0D3D 3D21 0485 C567 1192 EE26 4DB7 4319) ## After your Report We try to fix critical issues in less than a week, and release a fixed version in less than two weeks. Thank you for keeping our software safe!