RHSA-2026:46988

Vulnerability from csaf_redhat - Published: 2026-07-27 23:35 - Updated: 2026-08-08 23:56
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: trivy: * trivy-0.72.0-0.1.2.hum1 (aarch64, x86_64) * trivy-0.72.0-0.1.2.hum1.src (src) Security Fix(es): trivy: * CVE-2026-15788 * CVE-2026-15792 * CVE-2026-56852
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-2026-15788

A flaw was found in BuildKit. An untrusted user, when authoring a build on a Windows Container on Windows (WCOW) configured BuildKit daemon, can exploit a vulnerability in the cache mount source selector. This flaw allows the user to read arbitrary files from the host system, leading to information disclosure.

6.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:trivy-main@aarch64 —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:trivy-main@src —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:trivy-main@x86_64 —
Vendor Fix fix
Threats
Impact Moderate
CVE-2026-56852

A flaw was found in golang.org/x/text. The norm.Iter component can enter an infinite loop when processing input that contains invalid UTF-8 (Unicode Transformation Format - 8-bit) bytes. A remote attacker could exploit this vulnerability by providing specially crafted input, leading to a Denial of Service (DoS) condition where the affected application becomes unresponsive.

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:trivy-main@aarch64 —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:trivy-main@src —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:trivy-main@x86_64 —
Vendor Fix fix
Threats
Impact Important
References
To clipboard 

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  "vulnerabilities": [
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      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "discovery_date": "2026-07-20T20:01:12.124214+00:00",
      "ids": [
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          "text": "2502989"
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      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in BuildKit. An untrusted user, when authoring a build on a Windows Container on Windows (WCOW) configured BuildKit daemon, can exploit a vulnerability in the cache mount source selector. This flaw allows the user to read arbitrary files from the host system, leading to information disclosure.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "github.com/moby/buildkit: BuildKit: Information Disclosure via Improper Handling of NTFS Directory Junctions",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "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.",
          "title": "CVSS score applicability"
        }
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        {
          "category": "external",
          "summary": "https://github.com/moby/buildkit/security/advisories/GHSA-388v-wmr2-g2v2",
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          "product_ids": [
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            "Red Hat Hardened Images:trivy-main@src",
            "Red Hat Hardened Images:trivy-main@x86_64"
          ],
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            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
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        }
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      },
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      "ids": [
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          "text": "2504233"
        }
      ],
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          "category": "description",
          "text": "A flaw was found in golang.org/x/text. The norm.Iter component can enter an infinite loop when processing input that contains invalid UTF-8 (Unicode Transformation Format - 8-bit) bytes. A remote attacker could exploit this vulnerability by providing specially crafted input, leading to a Denial of Service (DoS) condition where the affected application becomes unresponsive.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/text: golang.org/x/text: Denial of Service via invalid UTF-8 input",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "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.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "Red Hat Hardened Images:trivy-main@src",
          "Red Hat Hardened Images:trivy-main@x86_64"
        ]
      },
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        },
        {
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          "summary": "RHBZ#2504233",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2504233"
        },
        {
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          "url": "https://www.cve.org/CVERecord?id=CVE-2026-56852"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-56852",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56852"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/794100",
          "url": "https://go.dev/cl/794100"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/80142",
          "url": "https://go.dev/issue/80142"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-5970",
          "url": "https://pkg.go.dev/vuln/GO-2026-5970"
        }
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:trivy-main@aarch64",
            "Red Hat Hardened Images:trivy-main@src",
            "Red Hat Hardened Images:trivy-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "golang.org/x/text: golang.org/x/text: Denial of Service via invalid UTF-8 input"
    }
  ]
}



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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

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.


Detection rules are retrieved from Rulezet.