https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-01T21:51:33.471785+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-39324 CVE-2026-39324 — Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization 2026-10-01T21:51:33.473917+00:00

Affected: rack-session

Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie. This allows an unauthenticated attacker to supply a crafted session cookie that is accepted as valid session data without knowledge of any configured secret. Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access. This vulnerability is fixed in 2.1.2.

 https://vulnerability.circl.lu/vuln/usn-8190-1 USN-8190-1 — ruby-rack-session vulnerability 2026-10-01T21:51:33.474021+00:00

Affected: Ubuntu:25.10: ruby-rack-session

SeungMyung Lee discovered that Rack::Session did not properly reject cookies upon decryption failure. A remote attacker could use this issue to manipulate session contents and possibly gain unauthorized access.