{"id":"CVE-2026-61690","state":"PUBLISHED","title":"Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits","description":"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.","publishedAt":"2026-08-19T15:20:10.966Z","updatedAt":"2026-08-25T02:07:51.415Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["getgrav grav"],"affected":[{"vendor":"getgrav","product":"grav","versions":[{"version":"< 2.0.1","status":"affected"}]}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56","https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ff","https://github.com/getgrav/grav/releases/tag/2.0.1"],"weaknesses":["CWE-409"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/61xxx/CVE-2026-61690.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61690","state":"PUBLISHED","datePublished":"2026-08-19T15:20:10.966Z","dateUpdated":"2026-08-25T02:07:51.415Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-10T18:36:58.850Z"},"containers":{"cna":{"title":"Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"getgrav","product":"grav","versions":[{"version":"< 2.0.1","status":"affected"}]}],"references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56","name":"https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ff","name":"https://github.com/getgrav/grav/commit/1c1003cfcab5344203d6fde1aaa1f9a4ee3413ff","tags":["x_refsource_MISC"]},{"url":"https://github.com/getgrav/grav/releases/tag/2.0.1","name":"https://github.com/getgrav/grav/releases/tag/2.0.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-409","lang":"en","description":"CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-19T15:20:10.966Z"},"source":{"advisory":"GHSA-928x-9mpw-8h56","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-25T02:07:28.956498Z","id":"CVE-2026-61690","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-25T02:07:51.415Z"}}]}}}