{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45225","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-05-11T14:14:49.611Z","datePublished":"2026-05-12T21:09:28.287Z","dateUpdated":"2026-05-12T21:09:28.287Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-05-12T21:09:28.287Z"},"title":"Heym < 0.0.21 Path Traversal File Upload via upload_file()","descriptions":[{"lang":"en","value":"Heym before 0.0.21 contains a path traversal vulnerability in the file upload endpoint that allows authenticated users to write attacker-controlled files to arbitrary locations by supplying a crafted filename with traversal sequences. Attackers can exploit the unvalidated filename parameter in the upload_file() handler to bypass path restrictions and write, read, or delete files outside the intended storage directory."}],"tags":["x_open-source"],"datePublic":"2026-05-09T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","cweId":"CWE-22","type":"CWE"}]}],"affected":[{"defaultStatus":"affected","vendor":"heymrun","product":"heym","repo":"https://github.com/heymrun/heym","versions":[{"status":"affected","version":"0","versionType":"semver","lessThan":"0.0.21"},{"status":"unaffected","version":"835843e6d2bf7d018cbb8e50f28f0426eaa20c84","versionType":"git"}]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.2,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"LOW","version":"3.1","baseSeverity":"HIGH","baseScore":7.6,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L"}}],"references":[{"url":"https://github.com/heymrun/heym/releases/tag/v0.0.21","tags":["release-notes"]},{"url":"https://github.com/heymrun/heym/pull/92","tags":["issue-tracking"]},{"url":"https://github.com/heymrun/heym/commit/835843e6d2bf7d018cbb8e50f28f0426eaa20c84","tags":["patch"]},{"url":"https://www.vulncheck.com/advisories/heym-path-traversal-file-upload-via-upload-file","tags":["third-party-advisory"]}],"credits":[{"lang":"en","value":"Chia Min Jun Lennon","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"vulncheck"}}}}