{"id":"CLEANSTART-2026-DN43014","summary":"Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection","details":"Security vulnerability affects the alertmanager package. Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection.","modified":"2026-10-01T01:00:25.333941191Z","published":"2026-09-30T19:04:19.752187Z","upstream":["CVE-2026-56855"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-DN43014.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56855"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56855"}],"affected":[{"package":{"name":"alertmanager","ecosystem":"CleanStart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.34.0-r1"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-DN43014.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}