RHSA-2026:17682

Vulnerability from csaf_redhat - Published: 2026-05-14 17:44 - Updated: 2026-07-23 16:25
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: dotnet8.0: * aspnetcore-runtime-8.0-8.0.27-1.hum1 (aarch64, x86_64) * aspnetcore-runtime-dbg-8.0-8.0.27-1.hum1 (aarch64, x86_64) * aspnetcore-targeting-pack-8.0-8.0.27-1.hum1 (aarch64, x86_64) * dotnet-apphost-pack-8.0-8.0.27-1.hum1 (aarch64, x86_64) * dotnet-hostfxr-8.0-8.0.27-1.hum1 (aarch64, x86_64) * dotnet-runtime-8.0-8.0.27-1.hum1 (aarch64, x86_64) * dotnet-runtime-dbg-8.0-8.0.27-1.hum1 (aarch64, x86_64) * dotnet-sdk-8.0-8.0.127-1.hum1 (aarch64, x86_64) * dotnet-sdk-8.0-source-built-artifacts-8.0.127-1.hum1 (aarch64, x86_64) * dotnet-sdk-dbg-8.0-8.0.127-1.hum1 (aarch64, x86_64) * dotnet-targeting-pack-8.0-8.0.27-1.hum1 (aarch64, x86_64) * dotnet-templates-8.0-8.0.127-1.hum1 (aarch64, x86_64) * dotnet8.0-8.0.127-1.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-42899

A flaw was found in dotnet. An infinite loop in ASP.NET Core allows an unauthenticated remote attacker to cause a denial of service over a network. This issue can lead to an application crash and a high consumption of system resources.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@src —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@aarch64 —
Workaround
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@x86_64 —
Workaround
Threats
Impact Important
CVE-2026-45149

A flaw was found in the brace-expansion library. This vulnerability allows an attacker to cause a Denial of Service (DoS) by providing a large numeric range for expansion. The library allocates excessive memory to generate all intermediate elements before applying the maximum limit, leading to high memory consumption and potential application crashes. This can impact the availability of systems using the library.

6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@src —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@aarch64 —
Workaround
Unresolved product id: Red Hat Hardened Images:dotnet8-0-main@x86_64 —
Workaround
Threats
Impact Moderate
References
To clipboard 

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          "text": "A flaw was found in the brace-expansion library. This vulnerability allows an attacker to cause a Denial of Service (DoS) by providing a large numeric range for expansion. The library allocates excessive memory to generate all intermediate elements before applying the maximum limit, leading to high memory consumption and potential application crashes. This can impact the availability of systems using the library.",
          "title": "Vulnerability description"
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        },
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          "product_ids": [
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          ]
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Hardened Images:dotnet8-0-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
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      ],
      "title": "brace-expansion: brace-expansion: Denial of Service due to excessive memory allocation when expanding large numeric ranges"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


Detection rules are retrieved from Rulezet.