CVE-2026-63811

In the Linux kernel, the following vulnerability has been resolved: f2fs: read COW data with the original inode during atomic write When updating an atomic-write file, f2fswritebegin may read the previously written data back from the COW inode: prepareatomicwritebegin locates the block in the COW...

PT-2026-51839

Name of the Vulnerable Software and Affected Versions Linux kernel versions 5.15 and 6.1 Description An issue exists in the WireGuard driver where the decryption side can stop working completely for a specific peer under heavy networking load. This occurs when the system is under pressure and the...

Astra Linux – Vulnerability in Thunderbird

Thunderbird unprotects a secret OpenPGP key before using it for decryption, signing, or key import tasks. If the task fails, the secret key may remain in memory in an unprotected state. This vulnerability affects Thunderbird versions earlier than 78.8.1...

USN-8190-2: Rack::Session vulnerability

USN-8190-1 fixed a vulnerability in Rack::Session. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory details: SeungMyung Lee discovered that Rack::Session did not properly reject cookies upon decryption failure. A remote attacker could use this issue to...

SUSE CVE-2026-31637

In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets rxkaddecryptticket decrypts the RXKAD response ticket and then parses the buffer as plaintext without checking whether cryptoskcipherdecrypt succeeded. A malformed RESPONSE can...

DEBIAN-CVE-2026-31637

In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets rxkaddecryptticket decrypts the RXKAD response ticket and then parses the buffer as plaintext without checking whether cryptoskcipherdecrypt succeeded. A malformed RESPONSE can...

EUVD-2026-25530

In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets rxkaddecryptticket decrypts the RXKAD response ticket and then parses the buffer as plaintext without checking whether cryptoskcipherdecrypt succeeded. A malformed RESPONSE can...

CVE-2026-31637 rxrpc: reject undecryptable rxkad response tickets

In the Linux kernel, the following vulnerability has been resolved: rxrpc: reject undecryptable rxkad response tickets rxkaddecryptticket decrypts the RXKAD response ticket and then parses the buffer as plaintext without checking whether cryptoskcipherdecrypt succeeded. A malformed RESPONSE can...

PT-2026-34989

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The rxkad decrypt ticket function decrypts the RXKAD response ticket but parses the buffer as plaintext without verifying if the crypto skcipher decrypt operation was successful. A...

Ubuntu 25.10 : Rack::Session vulnerability (USN-8190-1)

The remote Ubuntu 25.10 host has a package installed that is affected by a vulnerability as referenced in the USN-8190-1 advisory. SeungMyung Lee discovered that Rack::Session did not properly reject cookies upon decryption failure. A remote attacker could use this issue to manipulate session...

USN-8190-1 ruby-rack-session vulnerability

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...

USN-8190-1: Rack::Session vulnerability

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...

SUSE CVE-2026-39324

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...

CVE-2026-39324

A flaw was found in Rack::Session. When configured with secrets, the Rack::Session::Cookie component incorrectly handles decryption failures. This allows an unauthenticated attacker to provide a specially crafted session cookie that is accepted as valid, even without knowledge of the configured...

Not Failing Securely ('Failing Open')

Overview rack-session is a session implementation for Rack. Affected versions of this package are vulnerable to Not Failing Securely 'Failing Open' in the Rack::Session::Cookie function when it is configured with the secrets: option. An attacker can gain unauthorized access or escalate privileges...

GHSA-33QG-7WPP-89CQ Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization

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 ...

EUVD-2026-19820

Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization...

CVE-2026-39324

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...

DEBIAN-CVE-2026-39324

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...

CVE-2026-39324

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...