{"id":"CVE-2026-61690","aliases":["CVE-2026-61455","GHSA-928x-9mpw-8h56"],"url":"https://o3.security/vulnerability/CVE-2026-61690","summary":"Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits","details":"Grav is a file-based Web platform. Prior to 2.0.1, Grav ZipArchiver::extract() in system/src/Grav/Common/Filesystem/ZipArchiver.php passes archives to ZipArchive::extractTo() without enforcing the system.gpm.archive uncompressed-size, file-count, or nesting-depth limits. Code using Archiver::create('zip') to extract an attacker-controlled archive can exhaust disk space or inodes and make the site unavailable. This issue is fixed in version 2.0.1.","published":"2026-08-19T15:20:10.966Z","modified":"2026-08-27T11:30:28.274051834Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"getgrav/grav","fixedVersion":"2.0.1"}],"fix":{"url":"https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ff","label":"getgrav/grav@1c1003c"},"references":[{"type":"WEB","url":"https://github.com/getgrav/grav/releases/tag/2.0.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61690.json"},{"type":"ADVISORY","url":"https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61690"},{"type":"FIX","url":"https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ff"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T11:30:28.274051834Z"}}