RHSA-2026:28491

Vulnerability from csaf_redhat - Published: 2026-06-23 19:10 - Updated: 2026-09-06 05:20
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: rpm: * python3-rpm-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-apidocs-6.0.1-6.1.hum1 (noarch) * rpm-build-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-build-libs-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-cron-6.0.1-6.1.hum1 (noarch) * rpm-devel-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-libs-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-audit-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-dbus-announce-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-fapolicyd-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-fsverity-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-ima-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-prioreset-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-selinux-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-syslog-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-systemd-inhibit-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-plugin-unshare-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-sign-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-sign-libs-6.0.1-6.1.hum1 (aarch64, x86_64) * rpm-6.0.1-6.1.hum1.src (src) Security Fix(es): rpm: * CVE-2026-44604
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.

A command injection vulnerability was discovered in the `rpmuncompress` utility of RPM. When extracting certain archive formats (ZIP, 7z, GEM) to a specified destination directory, the tool inserts the archive's top-level folder name into a shell command without properly sanitizing it. A specially crafted archive containing shell metacharacters in its folder name can execute arbitrary commands as the user running the extraction.

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:rpm-main@aarch64 —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:rpm-main@noarch —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:rpm-main@src —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:rpm-main@x86_64 —
Vendor Fix fix
Threats
Impact Moderate
Acknowledgments

{
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    "distribution": {
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    "notes": [
      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\nrpm:\n  * python3-rpm-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-apidocs-6.0.1-6.1.hum1 (noarch)\n  * rpm-build-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-build-libs-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-cron-6.0.1-6.1.hum1 (noarch)\n  * rpm-devel-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-libs-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-audit-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-dbus-announce-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-fapolicyd-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-fsverity-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-ima-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-prioreset-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-selinux-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-syslog-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-systemd-inhibit-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-plugin-unshare-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-sign-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-sign-libs-6.0.1-6.1.hum1 (aarch64, x86_64)\n  * rpm-6.0.1-6.1.hum1.src (src)\n\nSecurity Fix(es):\n\nrpm:\n  * CVE-2026-44604",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
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      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
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        "url": "https://access.redhat.com/errata/RHSA-2026:28491"
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_28491.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
    "tracking": {
      "current_release_date": "2026-09-06T05:20:40+00:00",
      "generator": {
        "date": "2026-09-06T05:20:40+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.16"
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      },
      "id": "RHSA-2026:28491",
      "initial_release_date": "2026-06-23T19:10:31+00:00",
      "revision_history": [
        {
          "date": "2026-06-23T19:10:31+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-04T00:36:24+00:00",
          "number": "2",
          "summary": "Last updated version"
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        {
          "date": "2026-09-06T05:20:40+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "rpm-main@aarch64",
                "product": {
                  "name": "rpm-main@aarch64",
                  "product_id": "rpm-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/python3-rpm@6.0.1-6.1.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "rpm-main@x86_64",
                "product": {
                  "name": "rpm-main@x86_64",
                  "product_id": "rpm-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/python3-rpm@6.0.1-6.1.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
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            "branches": [
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                "name": "rpm-main@src",
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                  "name": "rpm-main@src",
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                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/rpm@6.0.1-6.1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
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                    "purl": "pkg:rpm/redhat/rpm-apidocs@6.0.1-6.1.hum1?arch=noarch\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
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              }
            ],
            "category": "architecture",
            "name": "noarch"
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      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rpm-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:rpm-main@aarch64"
        },
        "product_reference": "rpm-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rpm-main@noarch as a component of Red Hat Hardened Images",
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        "product_reference": "rpm-main@noarch",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2026-44604",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "discovery_date": "2026-04-23T00:27:40+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2460967"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A command injection vulnerability was discovered in the `rpmuncompress` utility of RPM. When extracting certain archive formats (ZIP, 7z, GEM) to a specified destination directory, the tool inserts the archive\u0027s top-level folder name into a shell command without properly sanitizing it. A specially crafted archive containing shell metacharacters in its folder name can execute arbitrary commands as the user running the extraction.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "rpm: Command injection in rpmuncompress doUntar() via unescaped archive top-level directory name in popen() shell command",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw affects RPM source-preparation workflows in build environments; standard tar extraction is not affected. Red Hat Enterprise Linux (RHEL) and Red Hat In-Vehicle Operating System (RHIVOS) ship rpm based on the 4.x codebase, which does not include the doUntar()/singleRoot() construction introduced in the rpm 6.0 rewrite that is required to trigger this issue. These products are therefore not affected.",
          "title": "Statement"
        },
        {
          "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": {
        "fixed": [
          "Red Hat Hardened Images:rpm-main@aarch64",
          "Red Hat Hardened Images:rpm-main@noarch",
          "Red Hat Hardened Images:rpm-main@src",
          "Red Hat Hardened Images:rpm-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-44604"
        },
        {
          "category": "external",
          "summary": "RHBZ#2460967",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460967"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-44604",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-44604"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-44604",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44604"
        }
      ],
      "release_date": "2026-05-28T05:52:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-23T19:10:31+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:rpm-main@aarch64",
            "Red Hat Hardened Images:rpm-main@noarch",
            "Red Hat Hardened Images:rpm-main@src",
            "Red Hat Hardened Images:rpm-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:28491"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:rpm-main@aarch64",
            "Red Hat Hardened Images:rpm-main@noarch",
            "Red Hat Hardened Images:rpm-main@src",
            "Red Hat Hardened Images:rpm-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "rpm: Command injection in rpmuncompress doUntar() via unescaped archive top-level directory name in popen() shell command"
    }
  ]
}



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