{"api_version":"1","generated_at":"2026-07-31T22:36:52+00:00","cve":"CVE-2026-56671","urls":{"html":"https://cve.report/CVE-2026-56671","api":"https://cve.report/api/cve/CVE-2026-56671.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-56671","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-56671"},"summary":{"title":"ComfyUI: Path traversal in /experiment/models/preview allows arbitrary image file read","description":"ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. Prior to 0.28.0, get_model_preview in app/model_manager.py joins an unrestricted filename route capture to a selected model directory without a containment check, allowing an unauthenticated remote attacker to use traversal, encoded traversal, absolute paths, or an unbounded path_index to read image-decodable files and enumerate host paths. get_model_preview (app/model_manager.py) built the path with os.path.join(folder, filename) where filename is an unrestricted {filename:.*} route capture. Literal ../, percent-encoded %2e%2e%2f, and absolute paths all escaped the model directory; path_index was also unbounded. The target file is piped through Pillow and re-encoded as WEBP, so disclosure is limited to image-decodable files plus a file-existence/enumeration oracle (and internal-path leakage via path_index errors). This issue is fixed in version 0.28.0.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-07-31 06:16:29","updated_at":"2026-07-31 06:16:29"},"problem_types":["CWE-22","CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0","name":"https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/Comfy-Org/ComfyUI/pull/14734","name":"https://github.com/Comfy-Org/ComfyUI/pull/14734","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-pj59-g5vv-74q4","name":"https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-pj59-g5vv-74q4","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-56671","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56671","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Comfy-Org","product":"ComfyUI","version":"affected < 0.28.0","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"ComfyUI","vendor":"Comfy-Org","versions":[{"status":"affected","version":"< 0.28.0"}]}],"descriptions":[{"lang":"en","value":"ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. 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This issue is fixed in version 0.28.0."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-31T04:21:54.417Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-pj59-g5vv-74q4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-pj59-g5vv-74q4"},{"name":"https://github.com/Comfy-Org/ComfyUI/pull/14734","tags":["x_refsource_MISC"],"url":"https://github.com/Comfy-Org/ComfyUI/pull/14734"},{"name":"https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0","tags":["x_refsource_MISC"],"url":"https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0"}],"source":{"advisory":"GHSA-pj59-g5vv-74q4","discovery":"UNKNOWN"},"title":"ComfyUI: Path traversal in /experiment/models/preview allows arbitrary image file read"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-56671","datePublished":"2026-07-31T04:21:54.417Z","dateReserved":"2026-06-22T16:39:01.043Z","dateUpdated":"2026-07-31T04:21:54.417Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-31 06:16:29","lastModifiedDate":"2026-07-31 06:16:29","problem_types":["CWE-22","CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"56671","Ordinal":"1","Title":"ComfyUI: Path traversal in /experiment/models/preview allows arb","CVE":"CVE-2026-56671","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"56671","Ordinal":"1","NoteData":"ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. Prior to 0.28.0, get_model_preview in app/model_manager.py joins an unrestricted filename route capture to a selected model directory without a containment check, allowing an unauthenticated remote attacker to use traversal, encoded traversal, absolute paths, or an unbounded path_index to read image-decodable files and enumerate host paths. get_model_preview (app/model_manager.py) built the path with os.path.join(folder, filename) where filename is an unrestricted {filename:.*} route capture. Literal ../, percent-encoded %2e%2e%2f, and absolute paths all escaped the model directory; path_index was also unbounded. The target file is piped through Pillow and re-encoded as WEBP, so disclosure is limited to image-decodable files plus a file-existence/enumeration oracle (and internal-path leakage via path_index errors). This issue is fixed in version 0.28.0.","Type":"Description","Title":"ComfyUI: Path traversal in /experiment/models/preview allows arb"}]}}}