CVE-2026-77814

{"id": "CVE-2026-77814", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77814", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-21T17:33:19.983444Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"repo": "https://github.com/zanllp/infinite-image-browsing", "vendor": "zanllp", "product": "infinite-image-browsing", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.8.0"}], "programFiles": ["scripts/iib/api.py", "scripts/iib/tool.py"], "defaultStatus": "unaffected"}]}], "published": "2026-08-21T15:16:47.733", "references": [{"url": "https://github.com/zanllp/infinite-image-browsing", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/zanllp/infinite-image-browsing/blob/v1.8.0/scripts/iib/api.py#L329-L344", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/zanllp/infinite-image-browsing/commit/4057a624c7a23a36f0b4dc6a545b40767d602450", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/zanllp/infinite-image-browsing/issues/968", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/zanllp/infinite-image-browsing/pull/969", "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/infinite-image-browsing-is-path-trusted-prefix-comparison-omits-the-trailing-path-separator", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/zanllp/infinite-image-browsing/issues/968", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "is_path_trusted in scripts/iib/api.py compares the requested path against each allowed parent directory with path.startswith(parent_path), without appending a path separator. A directory whose name merely begins with an allowed path therefore satisfies the comparison, so where /data/images is allowed a request for /data/images_private/secret.txt is treated as trusted and served by FileResponse, disclosing files the confinement was meant to exclude. Whether the check applies depends on get_enable_access_control in scripts/iib/tool.py: it returns true when IIB_ACCESS_CONTROL is set to enable, false when set to disable, and otherwise true when the host Stable Diffusion WebUI was started with share, ngrok, listen or server_name, falling back to false. Confinement is therefore active in the network-exposed WebUI deployments that rely on it, while a standalone run with no such option serves every readable file regardless of this flaw. The fix compares against parent_path joined with os.sep."}, {"lang": "es", "value": "is_path_trusted en scripts/iib/API.py compara la ruta solicitada contra cada directorio padre permitido con path.startswith(parent_path), sin a\u00f1adir un separador de ruta. Un directorio cuyo nombre simplemente comienza con una ruta permitida, por lo tanto, satisface la comparaci\u00f3n, as\u00ed, donde /data/images est\u00e1 permitido, una solicitud para /data/images_private/secret.txt se trata como de confianza y es servida por FileResponse, revelando archivos que el confinamiento pretend\u00eda excluir. Si la verificaci\u00f3n se aplica depende de get_enable_access_control en scripts/iib/tool.py: devuelve verdadero cuando IIB_ACCESS_CONTROL est\u00e1 configurado como enable, falso cuando est\u00e1 configurado como disable, y, de lo contrario, verdadero cuando el host Stable Diffusion WebUI se inici\u00f3 con share, ngrok, listen o server_name, volviendo a falso. El confinamiento est\u00e1, por lo tanto, activo en las implementaciones de WebUI expuestas a la red que dependen de \u00e9l, mientras que una ejecuci\u00f3n independiente sin dicha opci\u00f3n sirve cada archivo legible independientemente de este fallo. La soluci\u00f3n compara contra parent_path unido con os.sep."}], "lastModified": "2026-10-15T19:10:00.173", "sourceIdentifier": "disclosure@vulncheck.com"}