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    FKIE_CVE-2026-110923

    Vulnerability from fkie_nvd - Published: 2026-10-15 06:17 - Updated: 2026-10-15 20:17
    Summary
    A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a ".." basename that sftp uses as the local destination, writing outside the directory the user selected.
    Impacted products
    Vendor Product Version

    {
      "affected": [
        {
          "affectedData": [
            {
              "collectionURL": "https://catalog.redhat.com/software/containers/",
              "cpes": [
                "cpe:/a:redhat:hummingbird:1"
              ],
              "defaultStatus": "affected",
              "packageName": "openssh-main",
              "product": "Red Hat Hardened Images",
              "vendor": "Red Hat",
              "versions": [
                {
                  "lessThan": "*",
                  "status": "unaffected",
                  "version": "10.5p1-1.2.hum1",
                  "versionType": "rpm"
                }
              ]
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:10"
              ],
              "defaultStatus": "affected",
              "packageName": "openssh",
              "product": "Red Hat Enterprise Linux 10",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:6"
              ],
              "defaultStatus": "affected",
              "packageName": "openssh",
              "product": "Red Hat Enterprise Linux 6",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:7"
              ],
              "defaultStatus": "affected",
              "packageName": "openssh",
              "product": "Red Hat Enterprise Linux 7",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:8"
              ],
              "defaultStatus": "affected",
              "packageName": "openssh",
              "product": "Red Hat Enterprise Linux 8",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/o:redhat:enterprise_linux:9"
              ],
              "defaultStatus": "affected",
              "packageName": "openssh",
              "product": "Red Hat Enterprise Linux 9",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:hummingbird:1"
              ],
              "defaultStatus": "unaffected",
              "packageName": "openshell",
              "product": "Red Hat Hardened Images",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:openshift:4"
              ],
              "defaultStatus": "affected",
              "packageName": "openshift/ose-rhel-coreos-8",
              "product": "Red Hat OpenShift Container Platform 4",
              "vendor": "Red Hat"
            },
            {
              "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
              "cpes": [
                "cpe:/a:redhat:openshift:4"
              ],
              "defaultStatus": "affected",
              "packageName": "openshift/ose-rhel-coreos-9",
              "product": "Red Hat OpenShift Container Platform 4",
              "vendor": "Red Hat"
            }
          ],
          "source": "secalert@redhat.com"
        }
      ],
      "cveTags": [],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a \"..\" basename that sftp uses as the local destination, writing outside the directory the user selected."
        }
      ],
      "id": "CVE-2026-110923",
      "lastModified": "2026-10-15T20:17:09.353",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
              "version": "3.1"
            },
            "exploitabilityScore": 2.8,
            "impactScore": 3.6,
            "source": "secalert@redhat.com",
            "type": "Secondary"
          }
        ]
      },
      "published": "2026-10-15T06:17:01.030",
      "references": [
        {
          "source": "secalert@redhat.com",
          "url": "https://access.redhat.com/errata/RHSA-2026:82247"
        },
        {
          "source": "secalert@redhat.com",
          "url": "https://access.redhat.com/security/cve/CVE-2026-110923"
        },
        {
          "source": "secalert@redhat.com",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553028"
        }
      ],
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-22"
            }
          ],
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ]
    }

    RHSA-2026:82247

    Vulnerability from csaf_redhat - Published: 2026-10-13 13:19 - Updated: 2026-10-15 23:34
    Summary
    Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
    Severity
    Moderate
    Scope
    5 vulnerabilities in this advisory, including CVE-2026-110923.
    CVE-2026-110923

    A flaw was found in OpenSSH. During an sftp copy, a malicious server can supply an empty name, a slash-only path, or a ".." basename that sftp uses as the local destination, writing outside the directory the user selected.

    Fixed: 22 products
    https://access.redhat.com/errata/RHSA-2026:82247
    Open the full advisory