{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-108360","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-09T20:32:44.301Z","datePublished":"2026-10-22T17:26:59.148Z","dateUpdated":"2026-10-29T11:50:16.342Z"},"containers":{"cna":{"title":"PhpSpreadsheet: SSRF whitelist bypass via unre-validated HTTP redirect in Drawing::setPath external image loading","problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"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"}}],"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"}],"affected":[{"vendor":"PHPOffice","product":"PhpSpreadsheet","versions":[{"version":"< 1.30.7","status":"affected"},{"version":">= 2.0.0, < 2.1.19","status":"affected"},{"version":">= 2.2.0, < 2.4.8","status":"affected"},{"version":">= 3.3.0, < 3.10.8","status":"affected"},{"version":">= 4.0.0, < 5.10.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-22T17:26:59.148Z"},"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."}],"source":{"advisory":"GHSA-2phh-27fw-q4gc","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-2phh-27fw-q4gc","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-29T11:49:35.255261Z","id":"CVE-2026-108360","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-29T11:50:16.342Z"}}]}}