{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53653", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-09T20:50:36.876Z", "datePublished": "2026-07-10T16:12:01.576Z", "dateUpdated": "2026-07-10T16:12:01.576Z"}, "containers": {"cna": {"title": "Grav: Unauthenticated denial of service via unbounded image derivative dimensions", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/getgrav/grav/security/advisories/GHSA-4x9g-vw65-vvf9", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/getgrav/grav/security/advisories/GHSA-4x9g-vw65-vvf9"}, {"name": "https://github.com/getgrav/grav/commit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6", "tags": ["x_refsource_MISC"], "url": "https://github.com/getgrav/grav/commit/d9f9f0369a07ae5c96cde700c7949e1237b29cf6"}, {"name": "https://github.com/getgrav/grav/commit/f4c0f42eea755cedad6f626b342c88d4cba72174", "tags": ["x_refsource_MISC"], "url": "https://github.com/getgrav/grav/commit/f4c0f42eea755cedad6f626b342c88d4cba72174"}, {"name": "https://github.com/getgrav/grav/releases/tag/1.7.53", "tags": ["x_refsource_MISC"], "url": "https://github.com/getgrav/grav/releases/tag/1.7.53"}, {"name": "https://github.com/getgrav/grav/releases/tag/2.0.0-rc.8", "tags": ["x_refsource_MISC"], "url": "https://github.com/getgrav/grav/releases/tag/2.0.0-rc.8"}], "affected": [{"vendor": "getgrav", "product": "grav", "versions": [{"version": ">= 2.0.0-beta.1, < 2.0.0-rc.8", "status": "affected"}, {"version": "< 1.7.53", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-10T16:12:01.576Z"}, "descriptions": [{"lang": "en", "value": "Grav is a file-based Web platform. Prior to 1.7.53 and 2.0.0-rc.8, Grav allows an unauthenticated visitor to exhaust server memory and CPU by requesting image derivatives with oversized dimensions through URL query image actions such as forceResize in Grav::fallbackUrl, which passes request parameters to ImageMedium magic actions without a dimension or pixel ceiling. This issue is fixed in versions 1.7.53 and 2.0.0-rc.8."}], "source": {"advisory": "GHSA-4x9g-vw65-vvf9", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0-beta.1,2.0.0-rc.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.7.53)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "grav", "source": "cna", "vendor": "getgrav"}, "product": "grav", "vendor": "getgrav"}], "created": "2026-07-10T18:00:04.907291+00:00", "updated": "2026-07-10T18:00:04.907320+00:00", "vendors": ["getgrav", "getgrav$PRODUCT$grav"]}