https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 03 Oct 2026 19:28:35 +0000 https://cve.radiocsirt.org/vuln/bdu:2026-09334 bdu:2026-09334 https://cve.radiocsirt.org/vuln/bdu:2026-09334 https://cve.radiocsirt.org/vuln/euvd-2026-290096 EUVD-2026-290096 https://cve.radiocsirt.org/vuln/euvd-2026-290096 https://cve.radiocsirt.org/vuln/fkie_cve-2026-39324 <p>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.</p> <p>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.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-39324 https://cve.radiocsirt.org/vuln/ghsa-33qg-7wpp-89cq <p><strong>Affected:</strong> RubyGems: rack-session</p> <p>`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.</p> <p>Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access.</p> <p>## Details</p> <p>When `secrets:` is configured, `Rack::Session::Cookie` attempts to decrypt incoming session cookies using one of the configured encryptors. If all decrypt attempts fail, the implementation does not reject the cookie. Instead, it falls back to decoding the cookie using a default coder.</p> <p>This fallback path processes attacker-controlled cookie data as trusted session state. The behavior is implicit and occurs even when encrypted cookies are expected.</p> <p>The fallback decoder is applied automatically and does not require the application to opt into a non-encrypted session format. As a result, a client can send a specially crafted cookie value that bypasses the intended integrity protections provided by `secrets:`.</p> <p>This issue affects both default configurations and those using alternative serializers for encrypted payloads.</p> <p>## Impact</p> <p>Any Rack application using `Rack::Session::Cookie` with `secrets:` may be affected.</p> <p>&gt; [!NOTE] &gt; Rails applications are typically not aff…</p> <p><strong>Affected:</strong> RubyGems: rack-session</p> <p>`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.</p> <p>Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access.</p> <p>## Details</p> <p>When `secrets:` is configured, `Rack::Session::Cookie` attempts to decrypt incoming session cookies using one of the configured encryptors. If all decrypt attempts fail, the implementation does not reject the cookie. Instead, it falls back to decoding the cookie using a default coder.</p> <p>This fallback path processes attacker-controlled cookie data as trusted session state. The behavior is implicit and occurs even when encrypted cookies are expected.</p> <p>The fallback decoder is applied automatically and does not require the application to opt into a non-encrypted session format. As a result, a client can send a specially crafted cookie value that bypasses the intended integrity protections provided by `secrets:`.</p> <p>This issue affects both default configurations and those using alternative serializers for encrypted payloads.</p> <p>## Impact</p> <p>Any Rack application using `Rack::Session::Cookie` with `secrets:` may be affected.</p> <p>&gt; [!NOTE] &gt; Rails applications are typically not aff…</p> https://cve.radiocsirt.org/vuln/ghsa-33qg-7wpp-89cq https://cve.radiocsirt.org/vuln/opensuse-su-2026:10604-1 <p>ruby4.0-rubygem-rack-session-2.1.2-1.1 on GA media</p> <p>ruby4.0-rubygem-rack-session-2.1.2-1.1 on GA media</p> https://cve.radiocsirt.org/vuln/opensuse-su-2026:10604-1 https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-39324 <p><strong>Affected:</strong> Ubuntu:25.10: ruby-rack-session, Ubuntu:26.04:LTS: ruby-rack-session</p> <p>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.</p> <p><strong>Affected:</strong> Ubuntu:25.10: ruby-rack-session, Ubuntu:26.04:LTS: ruby-rack-session</p> <p>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.</p> https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-39324