{"id":"CVE-2026-59193","state":"PUBLISHED","title":"Grav CMS — Improper Handling of Highly Compressed Data in Installer::unZip()","description":"Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash Grav or fill the disk by uploading a specially crafted ZIP archive through the Direct Install tool because Installer::unZip calls ZipArchive::extractTo without limits on uncompressed size, entry count, or directory depth. This issue is fixed in version 2.0.0.","publishedAt":"2026-07-10T16:35:48.124Z","updatedAt":"2026-07-10T19:04:53.166Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["getgrav grav"],"affected":[{"vendor":"getgrav","product":"grav","versions":[{"version":">= 1.0.0, < 2.0.0","status":"affected"}]}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9","https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781","https://github.com/getgrav/grav/releases/tag/2.0.0"],"weaknesses":["CWE-409"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59193.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59193","state":"PUBLISHED","datePublished":"2026-07-10T16:35:48.124Z","dateUpdated":"2026-07-10T19:04:53.166Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-02T19:53:48.831Z"},"containers":{"cna":{"title":"Grav CMS — Improper Handling of Highly Compressed Data in Installer::unZip()","descriptions":[{"lang":"en","value":"Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash Grav or fill the disk by uploading a specially crafted ZIP archive through the Direct Install tool because Installer::unZip calls ZipArchive::extractTo without limits on uncompressed size, entry count, or directory depth. This issue is fixed in version 2.0.0."}],"affected":[{"vendor":"getgrav","product":"grav","versions":[{"version":">= 1.0.0, < 2.0.0","status":"affected"}]}],"references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9","name":"https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781","name":"https://github.com/getgrav/grav/commit/23d6f2adf4ce11889c088ac8557c8314baeef781","tags":["x_refsource_MISC"]},{"url":"https://github.com/getgrav/grav/releases/tag/2.0.0","name":"https://github.com/getgrav/grav/releases/tag/2.0.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"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":"2026-07-10T16:35:48.124Z"},"source":{"advisory":"GHSA-2vcx-h8p2-9pg9","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-2vcx-h8p2-9pg9","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-10T19:04:43.281679Z","id":"CVE-2026-59193","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-10T19:04:53.166Z"}}]}}}