Mimekit has vulnerable dependency that can lead to denial of service
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### Summary Denial of service vulnerability. ### Details See: https://github.com/advisories/GHSA-447r-wph3-92pm and https://github.com/dotnet/announcements/issues/312 ### PoC Update System.Security.Cryptography.Pkcs to 8.0.1 so that the transitive dependency with the issue gets updated ### Impact Denial of service vulnerability. Affects MimeKit (>= v3.0.0 and <= v4.7.0) when used to decrypt or verify incoming S/MIME messages as well as importing 3rd-party X.509 certificates for use with encrypting outgoing S/MIME messages.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | MimeKit (NuGet) | 3.0.0 to before 4.7.1 | 4.7.1 | Patch available | GHSA-gmc6-fwg3-75m5 |
- MimeKit (NuGet) Vendor— Affected 3.0.0 to before 4.7.1 Fixed in 4.7.1 Patch available GHSA-gmc6-fwg3-75m5
Remediation
- Fix · GHSA-gmc6-fwg3-75m5 MimeKit (NuGet) Fixed in 4.7.1 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-gmc6-fwg3-75m5
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences