pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)

{
  "id": "c49810116a7f4923f34f388c03a94e9a517d55661651853670e9c1583981bb02",
  "url": "https://osv.dev/vulnerability/CVE-2026-41133",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pyLoad has Stale Session Privilege After Role/Permission Change (Privilege Revocation Bypass)",
    "summary": "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.",
    "evidence": "osv:CVE-2026-41133",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-41133",
      "aliases": [
        "CVE-2026-41133",
        "GHSA-66hx-chf7-3332",
        "PYSEC-2026-2990"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pyload/pyload",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "e95804fb0d06cbb07d2ba380fc494d9ff89b68c1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "e95804fb0d06cbb07d2ba380fc494d9ff89b68c1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.4.9",
            "v0.4.8",
            "v0.4.7",
            "v0.4.6",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4",
            "v0.3.2",
            "v0.3.1",
            "v0.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2",
            "v0.1.1",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41133.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:53.491648564Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41133.json",
        "https://github.com/pyload/pyload/security/advisories/GHSA-66hx-chf7-3332",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-41133",
        "https://github.com/pyload/pyload/commit/e95804fb0d06cbb07d2ba380fc494d9ff89b68c1"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-613"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "0.5.0b3.dev97"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "0.5.0b3.dev97"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41133.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-41133",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 522187,
  "published_at": "2026-04-21T23:41:06.258+00:00"
}