{"items":[{"id":"NVI-00008013","kind":"vulnerability","title":"Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-928x-9mpw-8h56"],"plain_summary":"OSV carries this publisher advisory for getgrav/grav. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.0.1 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-f22a5c5afde5880a9e1d4159a0c3485a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-f22a5c5afde5880a9e1d4159a0c3485a","url":"https://github.com/advisories/GHSA-928x-9mpw-8h56","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-928x-9mpw-8h56","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.677Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f22a5c5afde5880a9e1d4159a0c3485a"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n`ZipArchiver::extract()` lacks limits on uncompressed size, file count, and nesting depth, creating a distinct, unpatched variant of the GHSA-2vcx-h8p2-9pg9 zip bomb vulnerability. While the parallel method Installer::unZip() received comprehensive limits, ZipArchiver::extract() remains unprotected, leaving a separate code path vulnerable to the same attack vector. The vulnerability is a distinct, unpatched variant of the bug described in GHSA-2vcx-h8p2-9pg9, as it affects a separate code path in the same codebase, implementing the same abstract class.\n\n---\n\n## Details\n\n**Vulnerable code** - `system/src/Grav/Common/Filesystem/ZipArchiver.php:29-58`:\n\n```php\npublic function extract($destination, ?callable $status = null)\n{\n    $zip = new ZipArchive();\n    $archive = $zip->open($this->archive_file);\n\n    if ($archive === true) {\n        Folder::create($destination);\n\n        // Only guards against Zip Slip (path traversal)\n        for ($i = 0, $count = $zip->count(); $i getNameIndex($i);\n            if ($name !== false && !$this->isSafeEntryPath($name)) {\n                $zip->close();\n                throw new RuntimeException(.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.1"]}],"null_published_at":"2026-10-31T22:13:22.826Z","source_updated_at":"2026-09-02T21:45:10.189Z","source_disclosed_at":"2026-09-02T21:35:43.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:10.677Z"}],"next_cursor":null,"snapshot_revision":"42594"}