Bug 2548777 (CVE-2026-102870)
| Summary: | CVE-2026-102870 dotnet10.0: dotnet11.0: ASP.NET Core Remote Code Execution Vulnerability | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | rhel-process-autobot, security-response-team, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
The Blazor WebAssembly debug proxy embeds attacker-controlled ToString(), description, and class-name values into generated C# without consistently escaping them. When a developer evaluates an expression while debugging, the value can escape the generated string literal and execute code on the developer's machine.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2552731 | ||
| Bug Blocks: | |||
| Deadline: | 2026-10-13 | ||
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:86195 https://access.redhat.com/errata/RHSA-2026:86195 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:86192 https://access.redhat.com/errata/RHSA-2026:86192 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:86193 https://access.redhat.com/errata/RHSA-2026:86193 |
Improper control of generation of code ('code injection') in ASP.NET Core allows an unauthorized attacker to execute code over a network. Affected packages: - Microsoft.AspNetCore.Components.WebAssembly.Server (release 11.0): 11.0.0-preview.1 - 11.0.0-rc.1; fixed 11.0.0-rc.2.26478.115 - Microsoft.AspNetCore.Components.WebAssembly.Server (release 10.0): 10.0.0 - 10.0.12; fixed 10.0.13