{"cve":{"cve_id":"CVE-2022-23540","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00532,"epss_percentile":0.40686,"epss_as_of":"2026-06-23","description":"In versions `<=8.5.1` of `jsonwebtoken` library, lack of algorithm definition in the `jwt.verify()` function can lead to signature validation bypass due to defaulting to the `none` algorithm for signature verification. Users are affected if you do not specify algorithms in the `jwt.verify()` function. This issue has been fixed, please update to version 9.0.0 which removes the default support for the none algorithm in the `jwt.verify()` method. There will be no impact, if you update to version 9.0.0 and you don’t need to allow for the `none` algorithm. If you need 'none' algorithm, you have to explicitly specify that in `jwt.verify()` options.","published_at":"2022-12-22T18:02:24.770000Z","last_modified_at":null,"cvss_v3_score":6.4,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"partial","cwes":["CWE-287"],"nvd_references":["https://github.com/auth0/node-jsonwebtoken/security/advisories/GHSA-qwph-4952-7xr6","https://github.com/auth0/node-jsonwebtoken/commit/e1fa9dcc12054a8681db4e6373da1b30cf7016e3","https://security.netapp.com/advisory/ntap-20240621-0007/"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-29T00:58:50.406025Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"auth0","vendor_name":"auth0","product_slug":"node-jsonwebtoken","product_name":"node-jsonwebtoken","version_start":"<= 8.5.1","version_start_inclusive":true,"version_end":"<= 8.5.1","version_end_inclusive":true,"cpe23_uri":"cve5:auth0:node-jsonwebtoken:<= 8.5.1:<= 8.5.1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/auth0/node-jsonwebtoken/security/advisories/GHSA-qwph-4952-7xr6","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/auth0/node-jsonwebtoken/commit/e1fa9dcc12054a8681db4e6373da1b30cf7016e3","source_type":"PATCH","tags":["patch"]},{"url":"https://security.netapp.com/advisory/ntap-20240621-0007/","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2022-12-22T18:02:24.770000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:21:28.018568Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:21:28.018568Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:21:28.018568Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T00:58:50.406025Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T00:58:50.406025Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T00:58:50.406025Z","label":"SSVC decision revised","source":"vulnrichment"}]}