{"id":"CVE-2026-108359","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-108359","generatedAt":"2026-10-28T02:58:09.408Z","title":"When the row contains a value, the reader materializes a cell for every repetition without checking the spreadsheet row limit, so a small attacker-controlled ODS file can consume substantial CPU and memory and terminate the PHP worker.","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, Ods::processTableRow in src/PhpSpreadsheet/Reader/Ods.php accepts an unbounded table:number-rows-repeated attribute from an ODS table row. When the row contains a value, the reader materializes a cell for every repetition without checking the spreadsheet row limit, so a small attacker-controlled ODS file can consume substantial CPU and memory and terminate the PHP worker. Column repetition is separately bounded and is not part of this vulnerability. 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":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-400","CWE-789"],"affected":[],"epss":{"score":0.00407,"percentile":0.34692,"date":"2026-10-26","history":[{"date":"2026-10-23","score":0.00407,"percentile":0.33843}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-22T18:17:27.000Z","detail":{"score":"8.7","severity":"HIGH","publishedAt":"2026-10-22T18:17:26.740Z"},"summary":"New CVE, high severity (CVSS 8.7)."}],"references":[{"url":"https://github.com/PHPOffice/PhpSpreadsheet/commit/299993894dce37aa3b64aa23e9a3f4bb77ab0e66","source":"security-advisories@github.com"},{"url":"https://github.com/PHPOffice/PhpSpreadsheet/commit/2de29384aa11223ee08136c0e6a9e9981bc1a2eb","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-j2w7-387v-m2rq","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-108359","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."}