{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53505","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-09T17:05:25.059Z","datePublished":"2026-07-31T19:00:22.755Z","dateUpdated":"2026-08-03T17:20:37.186Z"},"containers":{"cna":{"title":"Thumbor proportion filter allows unbounded post-transform resize leading to remote DoS","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/thumbor/thumbor/security/advisories/GHSA-phj3-59pf-cp83","tags":["x_refsource_CONFIRM"],"url":"https://github.com/thumbor/thumbor/security/advisories/GHSA-phj3-59pf-cp83"},{"name":"https://github.com/thumbor/thumbor/commit/2c716119de986cfc68c7071af52a98187e006023","tags":["x_refsource_MISC"],"url":"https://github.com/thumbor/thumbor/commit/2c716119de986cfc68c7071af52a98187e006023"},{"name":"https://github.com/thumbor/thumbor/releases/tag/7.8.0","tags":["x_refsource_MISC"],"url":"https://github.com/thumbor/thumbor/releases/tag/7.8.0"}],"affected":[{"vendor":"thumbor","product":"thumbor","versions":[{"version":"< 7.8.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-31T19:00:22.755Z"},"descriptions":[{"lang":"en","value":"Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's filters:proportion(<value>) filter does not enforce an upper bound on <value> and runs in the post-transform phase. An attacker can trigger extremely large resizes (CPU/memory exhaustion) and cause denial of service. This issue is fixed in 7.8.0."}],"source":{"advisory":"GHSA-phj3-59pf-cp83","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-03T17:20:18.124845Z","id":"CVE-2026-53505","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"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":"2026-08-03T17:20:37.186Z"}}]}}