Is MimeKit affected by CVE-2026-30227?

NuGet MimeKit is affected in <4.15.1.

Is CVE-2026-30227 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 1.1%.

medium

CVE-2026-30227

Q: Is CVE-2026-30227 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 1.1%.

NuGet · MimeKit

Summary

MimeKit has CRLF Injection in Quoted Local-Part that Enables SMTP Command Injection and Email Forgery

Severity: medium
EPSS: 1.1% (p61)
Also known as: GHSA-g7hc-96xr-gvvx
Published: 2026-03-05

References

https://github.com/jstedfast/MimeKit/security/advisories/GHSA-g7hc-96xr-gvvx
https://nvd.nist.gov/vuln/detail/CVE-2026-30227
https://github.com/jstedfast/MimeKit

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.