CVE Vulnerabilities

CVE-2026-66822

Insertion of Sensitive Information Into Sent Data

Published: Oct 13, 2026 | Modified: Oct 22, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
5.9 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM

Insertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information over a network.

Weakness

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

Affected Software

NameVendorStart VersionEnd Version
Red Hat Enterprise Linux 10RedHatdotnet8.0-0:8.0.132-1.el10_2*
Red Hat Enterprise Linux 10RedHatdotnet9.0-0:9.0.122-1.el10_2*
Red Hat Enterprise Linux 10RedHatdotnet10.0-0:10.0.113-1.el10_2*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatdotnet9.0-0:9.0.122-1.el10_0*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatdotnet8.0-0:8.0.132-1.el10_0*
Red Hat Enterprise Linux 8RedHatdotnet9.0-0:9.0.122-1.el8_10*
Red Hat Enterprise Linux 8RedHatdotnet10.0-0:10.0.113-1.el8_10*
Red Hat Enterprise Linux 8RedHatdotnet8.0-0:8.0.132-2.el8_10*
Red Hat Enterprise Linux 9RedHatdotnet8.0-0:8.0.132-1.el9_8*
Red Hat Enterprise Linux 9RedHatdotnet9.0-0:9.0.122-1.el9_8*
Red Hat Enterprise Linux 9RedHatdotnet10.0-0:10.0.113-1.el9_8*
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRedHatdotnet8.0-0:8.0.132-1.el9_4*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatdotnet8.0-0:8.0.132-1.el9_6*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatdotnet9.0-0:9.0.122-1.el9_6*
Red Hat Hardened ImagesRedHatdotnet9-0-main-9.0.122-0.1.hum1*
Red Hat Hardened ImagesRedHatdotnet9-0-main-9.0.21-0.1.hum1*
Red Hat Hardened ImagesRedHatdotnet10-0-main-10.0.113-1.hum1*
Red Hat Hardened ImagesRedHatdotnet8-0-main-8.0.132-0.1.hum1*
Dotnet10Ubuntudevel*
Dotnet10Ubuntunoble*
Dotnet10Ubunturesolute*
Dotnet10Ubuntustonking*
Dotnet11Ubuntudevel*
Dotnet11Ubuntustonking*
Dotnet7Ubuntujammy*
Dotnet8Ubuntujammy*
Dotnet8Ubuntunoble*

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References