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dotnet: Dotnet: SMTP Command Injection and Header Injection via MailAddress parsing flaw

🗓️ 16 Apr 2026 14:46:56Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 18 Views

Dotnet MailAddress flaw enables SMTP command and header injection risking data exposure.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-32178
14 Apr 202616:57
–attackerkb
Tenable Nessus		Amazon Linux 2023 : aspnetcore-runtime-10.0, aspnetcore-runtime-dbg-10.0, aspnetcore-targeting-pack-10.0 (ALAS2023-2026-1627)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : aspnetcore-runtime-9.0, aspnetcore-runtime-dbg-9.0, aspnetcore-targeting-pack-9.0 (ALAS2023-2026-1628)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : aspnetcore-runtime-8.0, aspnetcore-runtime-dbg-8.0, aspnetcore-targeting-pack-8.0 (ALAS2023-2026-1629)
30 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 8.0 (ALSA-2026:8468)
20 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : .NET 8.0 (ALSA-2026:8469)
17 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : .NET 8.0 (ALSA-2026:8470)
21 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : .NET 9.0 (ALSA-2026:8472)
21 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 10.0 (ALSA-2026:8473)
20 Apr 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : .NET 9.0 (ALSA-2026:8475)
20 Apr 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64aspnetcore-runtime-9.00:9.0.15-1.el8_10aspnetcore-runtime-9.0-0:9.0.15-1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64leaspnetcore-runtime-9.00:9.0.15-1.el8_10aspnetcore-runtime-9.0-0:9.0.15-1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8s390xaspnetcore-runtime-9.00:9.0.15-1.el8_10aspnetcore-runtime-9.0-0:9.0.15-1.el8_10.s390x.rpm
Red Hat Enterprise Linux8x86_64aspnetcore-runtime-9.00:9.0.15-1.el8_10aspnetcore-runtime-9.0-0:9.0.15-1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8aarch64aspnetcore-runtime-dbg-9.00:9.0.15-1.el8_10aspnetcore-runtime-dbg-9.0-0:9.0.15-1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64leaspnetcore-runtime-dbg-9.00:9.0.15-1.el8_10aspnetcore-runtime-dbg-9.0-0:9.0.15-1.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8s390xaspnetcore-runtime-dbg-9.00:9.0.15-1.el8_10aspnetcore-runtime-dbg-9.0-0:9.0.15-1.el8_10.s390x.rpm
Red Hat Enterprise Linux8x86_64aspnetcore-runtime-dbg-9.00:9.0.15-1.el8_10aspnetcore-runtime-dbg-9.0-0:9.0.15-1.el8_10.x86_64.rpm
Red Hat Enterprise Linux8aarch64aspnetcore-targeting-pack-9.00:9.0.15-1.el8_10aspnetcore-targeting-pack-9.0-0:9.0.15-1.el8_10.aarch64.rpm
Red Hat Enterprise Linux8ppc64leaspnetcore-targeting-pack-9.00:9.0.15-1.el8_10aspnetcore-targeting-pack-9.0-0:9.0.15-1.el8_10.ppc64le.rpm
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30 Jun 2026 04:29Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.17.5
EPSS0.02279
SSVC
CWE-138
dotnet platformmail address parsingheader injectioncommand injectiondata exposuresystem net mail
18