RHSA-2026:84693
Vulnerability from csaf_redhat - Published: 2026-10-19 06:12 - Updated: 2026-10-21 04:36Uncontrolled recursion in .NET allows an unauthorized attacker to deny service over a network.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-dbg-8.0-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-dbg-8.0-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-templates-8.0-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-templates-8.0-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet8.0-0:8.0.132-0.1.hum1@src | — |
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| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-dbg-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-dbg-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:aspnetcore-targeting-pack-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:aspnetcore-targeting-pack-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-apphost-pack-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-apphost-pack-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-hostfxr-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-hostfxr-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-dbg-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-dbg-8.0-0:8.0.32-0.1.hum1@x86_64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-targeting-pack-8.0-0:8.0.32-0.1.hum1@aarch64 | — | ||
| Unresolved product id: Red Hat Hardened Images:dotnet-targeting-pack-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
Insertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information over a network.
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
A flaw was found in .NET. An out-of-bounds write vulnerability allows an unauthenticated remote attacker to execute arbitrary code on the target system over the network. By convincing a user to process specially crafted input, an attacker can trigger memory corruption and compromise the affected system.
A flaw was found in .NET. The vulnerability stems from insecure deserialization, where data transmitted over a network is reconstructed without adequate validation. A remote, unauthenticated attacker could exploit this issue by convincing a user to process specially crafted input. Successful exploitation enables the attacker to achieve arbitrary code execution on the target system.
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-dbg-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:aspnetcore-runtime-dbg-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:aspnetcore-targeting-pack-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:aspnetcore-targeting-pack-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-apphost-pack-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-apphost-pack-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-hostfxr-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-hostfxr-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-dbg-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-runtime-dbg-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-dbg-8.0-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-sdk-dbg-8.0-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-targeting-pack-8.0-0:8.0.32-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-targeting-pack-8.0-0:8.0.32-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-templates-8.0-0:8.0.132-0.1.hum1@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet-templates-8.0-0:8.0.132-0.1.hum1@x86_64 | — |
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| Unresolved product id: Red Hat Hardened Images:dotnet8.0-0:8.0.132-0.1.hum1@src | — |
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A flaw was found in dotnet. The Microsoft Common Object Runtime Library improperly handles incoming web requests. A remote, unauthenticated attacker could exploit this vulnerability by sending specially crafted web requests to an affected application, resulting in a Denial of Service (DoS).
A flaw was found in .NET. An out-of-bounds write vulnerability allows an unauthenticated remote attacker to execute arbitrary code over the network. By sending specially crafted input to an affected application, an attacker can corrupt system memory and compromise the host environment.
CWE-787 - Out-of-bounds WriteA flaw was found in .NET. An insecure deserialization vulnerability allows an unauthenticated remote attacker to achieve arbitrary code execution over a network. By convincing an application or user to process specially crafted serialized data, an attacker can execute malicious commands with the privileges of the affected application.
CWE-502 - Deserialization of Untrusted DataA flaw was found in .NET. An integer overflow issue allows an unauthenticated remote attacker to achieve privilege escalation over the network. By convincing a user to process specially crafted input, an attacker can cause a calculation error that leads to unauthorized access with elevated permissions.
A flaw was found in dotnet. A remote attacker can achieve arbitrary code execution by tricking an application or user into processing maliciously crafted data during deserialization (the process of reconstructing data into an application object). Successful exploitation allows the attacker to execute unauthorized code over the network within the context of the running application.
CWE-502 - Deserialization of Untrusted DataImproper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny service over a network.
A flaw was found in .NET. An origin validation error allows an unauthorized remote attacker to disclose sensitive information over the network. Successful exploitation requires user interaction and enables an attacker to access restricted data without proper authorization.
CWE-346 - Origin Validation ErrorInclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.
Origin validation error in .NET allows an unauthorized attacker to bypass a security feature over a network.
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"title": "dotnet: dotnet: arbitrary code execution via untrusted data deserialization"
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{
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"title": "Statement"
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.