{"id":"CVE-2026-108360","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-108360","generatedAt":"2026-10-28T01:01:09.513Z","title":"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.","description":"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.","published":"2026-10-22T18:17:27.000Z","lastModified":"2026-10-23T19:42:25.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},"cwe":["CWE-863","CWE-918"],"affected":[],"epss":{"score":0.00221,"percentile":0.1257,"date":"2026-10-26","history":[{"date":"2026-10-23","score":0.00221,"percentile":0.12007}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-22T18:17:27.000Z","detail":{"score":"6.4","severity":"MEDIUM","publishedAt":"2026-10-22T18:17:26.897Z"},"summary":"New CVE, medium severity (CVSS 6.4)."}],"references":[{"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","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-108360","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}