{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-61449", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-07-09T14:06:14.016Z", "datePublished": "2026-07-15T11:25:43.802Z", "dateUpdated": "2026-10-08T15:23:32.555Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-08T15:23:32.555Z" }, "datePublic": "2026-06-25T00:00:00.000Z", "title": "Grav before 2.0.2 Decompression Bomb via Forged ZIP Size", "descriptions": [ { "lang": "en", "value": "Grav 2.0.1 contains a decompression-bomb size-cap bypass in ZipArchiver and GPM\\Installer. The size bound introduced in 2.0.1 sums the uncompressed size declared in each entry's ZIP central-directory header (ZipArchive::statIndex()['size']) and rejects archives exceeding system.gpm.archive.max_uncompressed_size before extraction. Because this declared size is attacker-forgeable and is not cross-checked against the actual inflated stream, a crafted archive declaring tiny per-entry sizes passes the cap while extractTo() writes the real, much larger content, filling disk or exhausting inodes. The archive must be supplied by a package source or admin upload (admin/operator trust). Fixed in 2.0.2. This is an incomplete fix for GHSA-928x-9mpw-8h56." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Handling of Highly Compressed Data (Data Amplification)", "cweId": "CWE-409", "type": "CWE" } ] } ], "affected": [ { "vendor": "getgrav", "product": "grav", "defaultStatus": "unaffected", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThan": "2.0.2" }, { "version": "2.0.2", "status": "unaffected", "versionType": "semver" } ], "packageURL": "pkg:composer/getgrav/grav" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.0.2" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://github.com/getgrav/grav/security/advisories/GHSA-8h9x-89f2-m7x3", "name": "GitHub Security Advisory (GHSA-8h9x-89f2-m7x3)", "tags": [ "vendor-advisory" ] }, { "name": "VulnCheck Advisory: Grav before 2.0.2 Decompression Bomb via Forged ZIP Size", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/grav-before-decompression-bomb-via-forged-zip-size" } ], "credits": [ { "lang": "en", "value": "iliaal", "type": "reporter" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "references": [ { "url": "https://github.com/getgrav/grav/security/advisories/GHSA-8h9x-89f2-m7x3", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-15T17:49:17.546567Z", "id": "CVE-2026-61449", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-15T17:52:57.760Z" } } ] } }