Vulnerability · Published Sep 8, 2026 · Assigned by microsoft
CVE-2026-58649.NET Information Disclosure Vulnerability
Medium 6.5
In plain English
A medium-severity security flaw in Microsoft Visual Studio 2022 version 17.14 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 70.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | aspnetcore-runtime-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | aspnetcore-runtime-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | aspnetcore-runtime-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | aspnetcore-runtime-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | aspnetcore-runtime-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | aspnetcore-runtime-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | aspnetcore-runtime-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | aspnetcore-runtime-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | aspnetcore-runtime-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | aspnetcore-runtime-dbg-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | aspnetcore-runtime-dbg-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | aspnetcore-runtime-dbg-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | aspnetcore-targeting-pack-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | aspnetcore-targeting-pack-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | aspnetcore-targeting-pack-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | aspnetcore-targeting-pack-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | aspnetcore-targeting-pack-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | aspnetcore-targeting-pack-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | aspnetcore-targeting-pack-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | aspnetcore-targeting-pack-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | aspnetcore-targeting-pack-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:8 | dotnet | 10.0.112-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:10 | dotnet-apphost-pack-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-apphost-pack-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-apphost-pack-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-apphost-pack-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-apphost-pack-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-apphost-pack-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-apphost-pack-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-apphost-pack-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-apphost-pack-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-host | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-host | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-host | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-hostfxr-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-hostfxr-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-hostfxr-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-hostfxr-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-hostfxr-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-hostfxr-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-hostfxr-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-hostfxr-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-hostfxr-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-runtime-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-runtime-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-runtime-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-runtime-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-runtime-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-runtime-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-runtime-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-runtime-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-runtime-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-runtime-dbg-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-runtime-dbg-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-runtime-dbg-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-runtime-dbg-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-runtime-dbg-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-runtime-dbg-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-runtime-dbg-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-runtime-dbg-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-runtime-dbg-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-sdk-10.0 | 10.0.112-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-sdk-10.0 | 10.0.112-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-sdk-10.0 | 10.0.112-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-sdk-10.0-source-built-artifacts | 10.0.112-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-sdk-10.0-source-built-artifacts | 10.0.112-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-sdk-10.0-source-built-artifacts | 10.0.112-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-sdk-8.0 | 8.0.131-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-sdk-8.0 | 8.0.131-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-sdk-8.0 | 8.0.131-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-sdk-8.0-source-built-artifacts | 8.0.131-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-sdk-8.0-source-built-artifacts | 8.0.131-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-sdk-8.0-source-built-artifacts | 8.0.131-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-sdk-9.0 | 9.0.121-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-sdk-9.0 | 9.0.121-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-sdk-9.0 | 9.0.121-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-sdk-9.0-source-built-artifacts | 9.0.121-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-sdk-9.0-source-built-artifacts | 9.0.121-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-sdk-9.0-source-built-artifacts | 9.0.121-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-sdk-aot-10.0 | 10.0.112-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-sdk-aot-10.0 | 10.0.112-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-sdk-aot-10.0 | 10.0.112-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-sdk-aot-9.0 | 9.0.121-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-sdk-aot-9.0 | 9.0.121-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-sdk-aot-9.0 | 9.0.121-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-sdk-dbg-10.0 | 10.0.112-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-sdk-dbg-10.0 | 10.0.112-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-sdk-dbg-10.0 | 10.0.112-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-sdk-dbg-8.0 | 8.0.131-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-sdk-dbg-8.0 | 8.0.131-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-sdk-dbg-8.0 | 8.0.131-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-sdk-dbg-9.0 | 9.0.121-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-sdk-dbg-9.0 | 9.0.121-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-sdk-dbg-9.0 | 9.0.121-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-targeting-pack-10.0 | 10.0.12-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-targeting-pack-10.0 | 10.0.12-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-targeting-pack-10.0 | 10.0.12-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-targeting-pack-8.0 | 8.0.31-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-targeting-pack-8.0 | 8.0.31-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-targeting-pack-8.0 | 8.0.31-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-targeting-pack-9.0 | 9.0.20-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-targeting-pack-9.0 | 9.0.20-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-targeting-pack-9.0 | 9.0.20-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | dotnet-templates-10.0 | 10.0.112-1.el10_2 | ALSA-2026:67530 |
| AlmaLinux:8 | dotnet-templates-10.0 | 10.0.112-1.el8_10 | ALSA-2026:68676 |
| AlmaLinux:9 | dotnet-templates-10.0 | 10.0.112-1.el9_8 | ALSA-2026:67613 |
| AlmaLinux:10 | dotnet-templates-8.0 | 8.0.131-1.el10_2 | ALSA-2026:67525 |
| AlmaLinux:8 | dotnet-templates-8.0 | 8.0.131-1.el8_10 | ALSA-2026:68316 |
| AlmaLinux:9 | dotnet-templates-8.0 | 8.0.131-1.el9_8 | ALSA-2026:67524 |
| AlmaLinux:10 | dotnet-templates-9.0 | 9.0.121-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | dotnet-templates-9.0 | 9.0.121-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | dotnet-templates-9.0 | 9.0.121-1.el9_8 | ALSA-2026:67614 |
| AlmaLinux:10 | netstandard-targeting-pack-2.1 | 9.0.121-1.el10_2 | ALSA-2026:67528 |
| AlmaLinux:8 | netstandard-targeting-pack-2.1 | 9.0.121-1.el8_10 | ALSA-2026:68233 |
| AlmaLinux:9 | netstandard-targeting-pack-2.1 | 9.0.121-1.el9_8 | ALSA-2026:67614 |
| Alpine:v3.23 | dotnet10-runtime | 10.0.13-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.24 | dotnet10-runtime | 10.0.12-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.22 | dotnet8-runtime | 8.0.31-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.23 | dotnet8-runtime | 8.0.31-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.24 | dotnet8-runtime | 8.0.31-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.22 | dotnet9-runtime | 9.0.20-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.23 | dotnet9-runtime | 9.0.20-r0 | ALPINE-CVE-2026-58649 |
| Alpine:v3.24 | dotnet9-runtime | 9.0.20-r0 | ALPINE-CVE-2026-58649 |
| Rocky Linux:10 | dotnet10.0 | 0:10.0.112-1.el10_2 | RLSA-2026:67530 |
| Rocky Linux:8 | dotnet10.0 | 0:10.0.112-1.el8_10 | RLSA-2026:68676 |
| Rocky Linux:9 | dotnet10.0 | 0:10.0.112-1.el9_8 | RLSA-2026:67613 |
| Rocky Linux:10 | dotnet8.0 | 0:8.0.131-1.el10_2 | RLSA-2026:67525 |
| Rocky Linux:8 | dotnet8.0 | 0:8.0.131-1.el8_10 | RLSA-2026:68316 |
| Rocky Linux:9 | dotnet8.0 | 0:8.0.131-1.el9_8 | RLSA-2026:67524 |
| Rocky Linux:10 | dotnet9.0 | 0:9.0.121-1.el10_2 | RLSA-2026:67528 |
| Rocky Linux:8 | dotnet9.0 | 0:9.0.121-1.el8_10 | RLSA-2026:68233 |
| Rocky Linux:9 | dotnet9.0 | 0:9.0.121-1.el9_8 | RLSA-2026:67614 |
| Ubuntu:24.04:LTS | dotnet10 | 10.0.112-10.0.12-0ubuntu1~24.04.1 | USN-8740-1 |
| Ubuntu:24.04:LTS | dotnet10 | 10.0.112-10.0.12-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-58649 |
| Ubuntu:26.04:LTS | dotnet10 | 10.0.112-10.0.12-0ubuntu1~26.04.1 | UBUNTU-CVE-2026-58649 |
| Ubuntu:26.04:LTS | dotnet10 | 10.0.112-10.0.12-0ubuntu1~26.04.1 | USN-8740-1 |
| Ubuntu:22.04:LTS | dotnet6 | no fix listed | UBUNTU-CVE-2026-58649 |
| Ubuntu:22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2026-58649 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.131-8.0.31-0ubuntu1~22.04.1 | UBUNTU-CVE-2026-58649 |
| Ubuntu:22.04:LTS | dotnet8 | 8.0.131-8.0.31-0ubuntu1~22.04.1 | USN-8740-1 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.131-8.0.31-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-58649 |
| Ubuntu:24.04:LTS | dotnet8 | 8.0.131-8.0.31-0ubuntu1~24.04.1 | USN-8740-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 10.0 runtime | 10.0.0 – before 10.0.111, 10.0.400 |
| Microsoft | .NET 11.0 runtime | 11.0.0 – before 11.0 RC1 |
| Microsoft | .NET 8.0 runtime | 8.0.0 – before 8.0.130, 8.0.424 |
| Microsoft | .NET 9.0 runtime | 9.0.0 – before 9.0.120, 9.0.317 |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 – before 17.14.40 |
| Microsoft | Microsoft Visual Studio 2026 version 18.9 | 18.9.0 – before 18.9.3 |
Weakness: CWE-346 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
References
- .NET Information Disclosure Vulnerability vendor-advisory, patch