{"id":"CVE-2020-17527","details":"While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.","aliases":["BIT-tomcat-2020-17527","GHSA-vvw4-rfwf-p6hx"],"modified":"2026-10-24T10:30:34.735991726Z","published":"2020-12-03T19:15:12.200Z","related":["SUSE-SU-2021:0031-1","SUSE-SU-2021:0040-1","SUSE-SU-2021:0041-1","SUSE-SU-2021:0042-1","SUSE-SU-2026:1058-1","openSUSE-SU-2021:0043-1","openSUSE-SU-2021:0081-1","openSUSE-SU-2024:11468-1","openSUSE-SU-2024:13441-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:*"],"extracted_events":[{"source":"CPE_RANGE","range":[{"introduced":"3.0.0"},{"last_affected":"3.1.3"}]}],"vendor_product":"netapp:oncommand_system_manager"},{"vendor_product":"oracle:blockchain_platform","cpes":["cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:*"],"extracted_events":[{"range":[{"fixed":"21.1.2"}],"source":"CPE_RANGE"}]},{"vendor_product":"oracle:mysql_enterprise_monitor","cpes":["cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*"],"extracted_events":[{"source":"CPE_RANGE","range":[{"fixed":"8.0.23"}]}]},{"extracted_events":[{"range":[{"introduced":"9.0.35-3.39.1"},{"last_affected":"9.0.35-3.39.1"},{"introduced":"9.0.35-3.57.3"},{"last_affected":"9.0.35-3.57.3"}],"source":"CPE_STRING"}],"vendor_product":"apache:tomcat","cpes":["cpe:2.3:a:apache:tomcat:9.0.35-3.39.1:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.35-3.57.3:*:*:*:*:*:*:*"]},{"vendor_product":"debian:debian_linux","cpes":["cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"range":[{"introduced":"9.0"},{"last_affected":"9.0"},{"introduced":"10.0"},{"last_affected":"10.0"}],"source":"CPE_STRING"}]},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.10.0:*:*:*:*:*:*:*"],"extracted_events":[{"source":"CPE_STRING","range":[{"introduced":"1.10.0"},{"last_affected":"1.10.0"}]}],"vendor_product":"oracle:communications_cloud_native_core_binding_support_function"},{"cpes":["cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*"],"extracted_events":[{"range":[{"introduced":"1.14.0"},{"last_affected":"1.14.0"}],"source":"CPE_STRING"}],"vendor_product":"oracle:communications_cloud_native_core_policy"},{"extracted_events":[{"range":[{"introduced":"10.0.1.5.0"},{"last_affected":"10.0.1.5.0"}],"source":"CPE_STRING"}],"vendor_product":"oracle:communications_instant_messaging_server","cpes":["cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.5.0:*:*:*:*:*:*:*"]},{"vendor_product":"oracle:instantis_enterprisetrack","cpes":["cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*","cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*","cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*"],"extracted_events":[{"range":[{"introduced":"17.1"},{"last_affected":"17.1"},{"introduced":"17.2"},{"last_affected":"17.2"},{"introduced":"17.3"},{"last_affected":"17.3"}],"source":"CPE_STRING"}]},{"cpes":["cpe:2.3:a:oracle:sd-wan_edge:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"source":"CPE_STRING","range":[{"introduced":"9.0"},{"last_affected":"9.0"}]}],"vendor_product":"oracle:sd-wan_edge"},{"vendor_product":"oracle:workload_manager","cpes":["cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:*","cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:*"],"extracted_events":[{"range":[{"introduced":"18c"},{"last_affected":"18c"},{"introduced":"19c"},{"last_affected":"19c"}],"source":"CPE_STRING"}]}]},"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/r26a2a66339087fc37db3caf201e446d3e83b5cce314371e235ff1784%40%3Ccommits.tomee.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r2d6e05c5ff96f8068a59dfdb3800e9ee8d4e36ce1971783c6e5f9b20%40%3Ccommits.tomee.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r5a285242737ddef4d338236328aaaf3237183e1465a5efafd16b99ed%40%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r8a227ac6a755a6406c1cc47dd48800e973d4cf13fe7fe68ac59c679c%40%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r9fd47f1b03e9b41d16a5cf72659b533887267d3398d963c2fff3abfa%40%3Ccommits.tomee.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/ra35c8d617b17d59f400112cebadec43ad379f98198b4a9726190d7ee%40%3Cissues.guacamole.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/ra9fcdb904dd2e2256ef90b3e4ced279cd464cb0ab63a6c64df5c010d%40%3Cannounce.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/ra9fcdb904dd2e2256ef90b3e4ced279cd464cb0ab63a6c64df5c010d%40%3Cannounce.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/raa0e9ad388c1e6fd1e301b5e080f9439f64cb4178119a86a4801cc53%40%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rabbe6b3ae6a9795641d7a05c00d2378d5bbbe4240b7e20f09b092cce%40%3Cissues.guacamole.apache.org%3E"},{"type":"WEB","url":"http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