{"items":[{"id":"NVI-00014149","kind":"vulnerability","title":"Infinite Loop in Apache Tomcat","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-m7jv-hq7h-mq7c","CVE-2020-13935"],"plain_summary":"GitHub lists this reviewed advisory for org.apache.tomcat:tomcat, org.apache.tomcat:tomcat, org.apache.tomcat:tomcat, org.apache.tomcat:tomcat, org.apache.tomcat.embed:tomcat-embed-websocket. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-08-25T18:32:31.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5035604eb06db84e8a29e46545765ca2"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5035604eb06db84e8a29e46545765ca2","url":"https://github.com/advisories/GHSA-m7jv-hq7h-mq7c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-m7jv-hq7h-mq7c","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 10.0.0-M1, < 10.0.0-M7"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 9.0.0.M1, < 9.0.37"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 8.5.0, < 8.5.57"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 7.0.27, < 7.0.105"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat.embed:tomcat-embed-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 7.0.27, < 7.0.105"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat.embed:tomcat-embed-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 8.5.0, < 8.5.57"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat.embed:tomcat-embed-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 9.0.0.M1, < 9.0.37"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat.embed:tomcat-embed-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 10.0.0-M1, < 10.0.0-M7"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 10.0.0-M1, < 10.0.0-M7"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 9.0.0.M1, < 9.0.37"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 8.5.0, < 8.5.57"]},{"certainty":"source_listed","source_ids":["sr-5035604eb06db84e8a29e46545765ca2"],"technology":"org.apache.tomcat:tomcat-websocket","known_exclusions":[],"conditions_summary":"The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.","public_affected_ranges":[">= 7.0.27, < 7.0.105"]}],"null_published_at":"2026-11-02T10:00:37.214Z","source_updated_at":"2026-08-25T18:32:31.000Z","source_disclosed_at":"2022-02-08T22:05:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-02T09:56:37.775Z"}],"next_cursor":null,"snapshot_revision":"42594"}