CVE-2026-107174

Full vulnerability record from the local CVENow database.

Description

A flaw was found in source-to-image. When unpacking archive files, the application fails to properly sanitize symbolic links pointing to absolute file paths. An attacker who supplies a malicious builder image can exploit this vulnerability by embedding links pointing outside the extraction directory. This allows the attacker to bypass sandbox boundaries, potentially leading to unauthorized information disclosure or file modification on the host system.

Severity

MEDIUM

CVSS score

6.4 (v3.1)

Vulnerability status

Awaiting Analysis

Source identifier

[email protected]

Published

2026-10-07 15:17:19.190000

Last modified

2026-11-13 13:17:39.273000

View original CVE JSON

{
  "id": "CVE-2026-107174",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-07T15:17:19.190",
  "lastModified": "2026-11-13T13:17:39.273",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in source-to-image. When unpacking archive files, the application fails to properly sanitize symbolic links pointing to absolute file paths. An attacker who supplies a malicious builder image can exploit this vulnerability by embedding links pointing outside the extraction directory. This allows the attacker to bypass sandbox boundaries, potentially leading to unauthorized information disclosure or file modification on the host system."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://github.com/openshift/source-to-image",
          "packageName": "source-to-image",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "1.6.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "OpenShift Serverless",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "openshift-serverless-1/kn-client-kn-rhel9",
          "cpes": [
            "cpe:/a:redhat:serverless:1"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "OpenShift Serverless",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "openshift-serverless-1/kn-plugin-func-func-util-rhel9",
          "cpes": [
            "cpe:/a:redhat:serverless:1"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "OpenShift Serverless",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "openshift-serverless-clients",
          "cpes": [
            "cpe:/a:redhat:serverless:1"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "OpenShift Source-to-Image (S2I)",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "source-to-image/source-to-image-rhel8",
          "cpes": [
            "cpe:/a:redhat:source_to_image:1"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "OpenShift Source-to-Image (S2I)",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "source-to-image/source-to-image-rhel9",
          "cpes": [
            "cpe:/a:redhat:source_to_image:1"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift Container Platform 4",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "openshift4/ose-docker-builder",
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift Container Platform 4",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "openshift4/ose-docker-builder-rhel9",
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift Container Platform 5",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "openshift5/ose-docker-builder-rhel9",
          "cpes": [
            "cpe:/a:redhat:openshift:5"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Web Terminal",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "web-terminal/web-terminal-tooling-rhel9",
          "cpes": [
            "cpe:/a:redhat:webterminal:1"
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-07T16:17:10.638072Z",
          "id": "CVE-2026-107174",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-61"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-107174",
      "source": "[email protected]"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547419",
      "source": "[email protected]"
    }
  ]
}