CVE-2026-108360 (GCVE-0-2026-108360)

Vulnerability from cvelistv5 – Published: 2026-10-22 17:26 – Updated: 2026-10-22 17:26
VLAI
Title
PhpSpreadsheet: SSRF whitelist bypass via unre-validated HTTP redirect in Drawing::setPath external image loading
Summary
PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0, Worksheet\Drawing::setPath validates only the initial external-image URL with setIsWhitelisted when setAllowExternalImages is enabled. The HTTP stream context permits PHP to follow a redirect without applying the callback to the redirected URL, so a permitted image host can redirect the server to an internal address and cause a blind GET request. The response body is not returned to the attacker because the reader validates the downloaded content as an image and removes the temporary file, but internal GET-driven endpoints, network reachability, and cloud metadata endpoints may be reached. This issue is fixed in versions 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7760 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
PHPOffice PhpSpreadsheet Affected: < 1.30.7
Affected: >= 2.0.0, < 2.1.19
Affected: >= 2.2.0, < 2.4.8
Affected: >= 3.3.0, < 3.10.8
Affected: >= 4.0.0, < 5.10.0
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "PhpSpreadsheet",
          "vendor": "PHPOffice",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.30.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.1.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.2.0, \u003c 2.4.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.3.0, \u003c 3.10.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 5.10.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0, Worksheet\\Drawing::setPath validates only the initial external-image URL with setIsWhitelisted when setAllowExternalImages is enabled. The HTTP stream context permits PHP to follow a redirect without applying the callback to the redirected URL, so a permitted image host can redirect the server to an internal address and cause a blind GET request. The response body is not returned to the attacker because the reader validates the downloaded content as an image and removes the temporary file, but internal GET-driven endpoints, network reachability, and cloud metadata endpoints may be reached. This issue is fixed in versions 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T17:26:59.148Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-2phh-27fw-q4gc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-2phh-27fw-q4gc"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/94590951d76a250a5fc1ecf69a0b3f7439a9af49",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/94590951d76a250a5fc1ecf69a0b3f7439a9af49"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/980b5c294493856f1a25754f1e8a1d2185b93738",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/980b5c294493856f1a25754f1e8a1d2185b93738"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/9a0b48622ebfe93fa48cb9bc09ce57303bb07af9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/9a0b48622ebfe93fa48cb9bc09ce57303bb07af9"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/da13f40e8760d599b0e8a296017d4b028b20e86c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/da13f40e8760d599b0e8a296017d4b028b20e86c"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.7"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.19",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.19"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.8"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.8"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.10.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.10.0"
        }
      ],
      "source": {
        "advisory": "GHSA-2phh-27fw-q4gc",
        "discovery": "UNKNOWN"
      },
      "title": "PhpSpreadsheet: SSRF whitelist bypass via unre-validated HTTP redirect in Drawing::setPath external image loading"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-108360",
    "datePublished": "2026-10-22T17:26:59.148Z",
    "dateReserved": "2026-10-09T20:32:44.301Z",
    "dateUpdated": "2026-10-22T17:26:59.148Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-108360",
      "date": "2026-10-25",
      "epss": "0.00221",
      "percentile": "0.12562"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "PhpSpreadsheet",
                "vendor": "PHPOffice",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 1.30.7"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 2.0.0, \u003c 2.1.19"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 2.2.0, \u003c 2.4.8"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 3.3.0, \u003c 3.10.8"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.0.0, \u003c 5.10.0"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0, Worksheet\\Drawing::setPath validates only the initial external-image URL with setIsWhitelisted when setAllowExternalImages is enabled. The HTTP stream context permits PHP to follow a redirect without applying the callback to the redirected URL, so a permitted image host can redirect the server to an internal address and cause a blind GET request. The response body is not returned to the attacker because the reader validates the downloaded content as an image and removes the temporary file, but internal GET-driven endpoints, network reachability, and cloud metadata endpoints may be reached. This issue is fixed in versions 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0."
          }
        ],
        "id": "CVE-2026-108360",
        "lastModified": "2026-10-23T19:42:24.553",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.1,
              "impactScore": 2.7,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-22T18:17:26.897",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/94590951d76a250a5fc1ecf69a0b3f7439a9af49"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/980b5c294493856f1a25754f1e8a1d2185b93738"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/9a0b48622ebfe93fa48cb9bc09ce57303bb07af9"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/da13f40e8760d599b0e8a296017d4b028b20e86c"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/1.30.7"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.1.19"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/2.4.8"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/3.10.8"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/releases/tag/5.10.0"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-2phh-27fw-q4gc"
          }
        ],
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        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
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                "lang": "en",
                "value": "CWE-863"
              },
              {
                "lang": "en",
                "value": "CWE-918"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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