{"id":"USN-8190-2","summary":"ruby-rack-session vulnerability","details":"USN-8190-1 fixed a vulnerability in Rack::Session. This update provides the\ncorresponding update for Ubuntu 26.04 LTS.\n\nOriginal advisory details:\n\n SeungMyung Lee discovered that Rack::Session did not properly reject\n cookies upon decryption failure. A remote attacker could use this issue to\n manipulate session contents and possibly gain unauthorized access.","modified":"2026-05-20T16:03:58.929656475Z","published":"2026-04-28T13:51:40Z","related":["UBUNTU-CVE-2026-39324"],"upstream":["UBUNTU-CVE-2026-39324"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8190-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-39324"}],"affected":[{"package":{"name":"ruby-rack-session","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ruby-rack-session?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.1-0.1ubuntu0.26.04.1"}]}],"versions":["2.1.1-0.1","2.1.1-0.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rack-session","binary_version":"2.1.1-0.1ubuntu0.26.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8190-2.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-39324"}],"ecosystem":"Ubuntu:26.04:LTS"}}}],"schema_version":"1.7.5"}