UBUNTU-CVE-2026-40372

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Source
https://ubuntu.com/security/CVE-2026-40372
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40372.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40372
Upstream
  • CVE-2026-40372
Downstream
Related
Published
2026-04-21T00:00:00Z
Modified
2026-05-20T16:25:39.892220058Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

References

Affected packages

Ubuntu:22.04:LTS / dotnet7

Package

Name
dotnet7
Purl
pkg:deb/ubuntu/dotnet7?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.0.105-0ubuntu1~22.04.1
7.0.107-0ubuntu1~22.04.1
7.0.108-0ubuntu1~22.04.1
7.0.109-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
7.0.111-0ubuntu1~22.04.1
7.0.112-0ubuntu1~22.04.1
7.0.113-0ubuntu1~22.04.1
7.0.114-0ubuntu1~22.04.1
7.0.115-0ubuntu1~22.04.1
7.0.116-0ubuntu1~22.04.1
7.0.117-0ubuntu1~22.04.1
7.0.117-0ubuntu1~22.04.2
7.0.119-0ubuntu1~22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "aspnetcore-runtime-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "aspnetcore-targeting-pack-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-apphost-pack-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-host-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-hostfxr-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-runtime-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-sdk-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-sdk-7.0-source-built-artifacts"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-targeting-pack-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet-templates-7.0"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "dotnet7"
        },
        {
            "binary_version": "7.0.119-0ubuntu1~22.04.1",
            "binary_name": "netstandard-targeting-pack-2.1-7.0"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40372.json"

Ubuntu:24.04:LTS / dotnet10

Package

Name
dotnet10
Purl
pkg:deb/ubuntu/dotnet10?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
10.0.107-10.0.7-0ubuntu1~24.04.1

Affected versions

10.*
10.0.100-10.0.0-0ubuntu1~24.04.1
10.0.101-10.0.1-0ubuntu1~24.04.2
10.0.103-10.0.3-0ubuntu1~24.04.1
10.0.104-10.0.4-0ubuntu1~24.04.1
10.0.105-10.0.5-0ubuntu1~24.04.1
10.0.106-10.0.6-0ubuntu1~24.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "aspnetcore-runtime-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "aspnetcore-runtime-dbg-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "aspnetcore-targeting-pack-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet-apphost-pack-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet-host-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet-hostfxr-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet-runtime-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet-runtime-dbg-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~24.04.1",
            "binary_name": "dotnet-sdk-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~24.04.1",
            "binary_name": "dotnet-sdk-10.0-source-built-artifacts"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~24.04.1",
            "binary_name": "dotnet-sdk-aot-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~24.04.1",
            "binary_name": "dotnet-sdk-dbg-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet-targeting-pack-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~24.04.1",
            "binary_name": "dotnet-templates-10.0"
        },
        {
            "binary_version": "10.0.107-10.0.7-0ubuntu1~24.04.1",
            "binary_name": "dotnet10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40372.json"

Ubuntu:25.10 / dotnet10

Package

Name
dotnet10
Purl
pkg:deb/ubuntu/dotnet10?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
10.0.107-10.0.7-0ubuntu1~25.10.1

Affected versions

10.*
10.0.100-10.0.0~rc1-0ubuntu1
10.0.100-10.0.0~rc2-0ubuntu1~25.10.2
10.0.100-10.0.0-0ubuntu1~25.10.1
10.0.101-10.0.1-0ubuntu1~25.10.2
10.0.103-10.0.3-0ubuntu1~25.10.1
10.0.104-10.0.4-0ubuntu1~25.10.1
10.0.105-10.0.5-0ubuntu1~25.10.1
10.0.106-10.0.6-0ubuntu1~25.10.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "aspnetcore-runtime-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "aspnetcore-runtime-dbg-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "aspnetcore-targeting-pack-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet-apphost-pack-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet-host-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet-hostfxr-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet-runtime-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet-runtime-dbg-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~25.10.1",
            "binary_name": "dotnet-sdk-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~25.10.1",
            "binary_name": "dotnet-sdk-10.0-source-built-artifacts"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~25.10.1",
            "binary_name": "dotnet-sdk-aot-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~25.10.1",
            "binary_name": "dotnet-sdk-dbg-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet-targeting-pack-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~25.10.1",
            "binary_name": "dotnet-templates-10.0"
        },
        {
            "binary_version": "10.0.107-10.0.7-0ubuntu1~25.10.1",
            "binary_name": "dotnet10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40372.json"

Ubuntu:26.04:LTS / dotnet10

Package

Name
dotnet10
Purl
pkg:deb/ubuntu/dotnet10?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
10.0.107-10.0.7-0ubuntu1~26.04.1

Affected versions

10.*
10.0.100-10.0.0~rc1-0ubuntu1
10.0.100-10.0.0~rc2-0ubuntu1
10.0.100-10.0.0-0ubuntu1
10.0.100-10.0.0-0ubuntu2
10.0.101-10.0.1-0ubuntu1
10.0.101-10.0.1-0ubuntu2
10.0.101-10.0.1-0ubuntu3
10.0.102-10.0.2-0ubuntu1
10.0.103-10.0.3-0ubuntu1
10.0.104-10.0.4-0ubuntu1
10.0.105-10.0.5-0ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "aspnetcore-runtime-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "aspnetcore-runtime-dbg-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "aspnetcore-targeting-pack-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet-apphost-pack-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet-host-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet-hostfxr-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet-runtime-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet-runtime-dbg-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~26.04.1",
            "binary_name": "dotnet-sdk-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~26.04.1",
            "binary_name": "dotnet-sdk-10.0-source-built-artifacts"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~26.04.1",
            "binary_name": "dotnet-sdk-aot-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~26.04.1",
            "binary_name": "dotnet-sdk-dbg-10.0"
        },
        {
            "binary_version": "10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet-targeting-pack-10.0"
        },
        {
            "binary_version": "10.0.107-0ubuntu1~26.04.1",
            "binary_name": "dotnet-templates-10.0"
        },
        {
            "binary_version": "10.0.107-10.0.7-0ubuntu1~26.04.1",
            "binary_name": "dotnet10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40372.json"