Authentication Bypass by Primary Weakness

Overview github.com/mattermost/mattermost/server/v8/channels/api4 is a platform for secure collaboration across the entire software development lifecycle Affected versions of this package are vulnerable to Authentication Bypass by Primary Weakness in the magic-link token authentication process. A...

Authentication Bypass by Primary Weakness

Overview Affected versions of this package are vulnerable to Authentication Bypass by Primary Weakness in the magic-link token authentication process. An attacker can gain unauthorized access to a deactivated guest account by using a previously issued magic-link token. Remediation Upgrade...

EUVD-2026-43315

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

CVE-2026-9597

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

CVE-2026-9597 Deactivated guest accounts can authenticate via magic-link token in Mattermost REST API login endpoint

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

CVE-2026-9597

Mattermost advisory MMSA-2026-00681 documents a vulnerability in Mattermost where versions 11.7.x <= 11.7.2 and 11.6.x

CVE-2026-9597 Deactivated guest accounts can authenticate via magic-link token in Mattermost REST API login endpoint

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

CVE-2026-9597 Deactivated guest accounts can authenticate via magic-link token in Mattermost REST API login endpoint

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

CVE-2026-9597: Authentication Bypass by Primary Weakness

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

PT-2026-59268

Impact What kind of vulnerability is it? Who is impacted? Receiving a file wormhole receive from a malicious party could result in overwriting critical local files, including /.ssh/authorized keys and .bashrc. This could be used to compromise the receiver's computer. Only the sender of the file t...

PT-2026-57663

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation...

PT-2026-59510

Summary This is a scanning bypass to scan pytorch function in picklescan. As we can see in the implementation of get magic number that uses pickletools.genopsdata to get the magic number with the condition opcode.name includes INT or LONG, but the PyTorch's implemtation simply uses pickle...

CVE-2026-56362

ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image channel metadata before pixel cache memory allocation. Attackers can trigger memory and disk allocation failures to cause a heap-buffer-overflow read affecting a...

CVE-2026-14495 DoLogin Security <= 4.3 - Unauthenticated Authentication Bypass via Insufficient Randomness via 'dologin' Parameter Weak PRNG Token

The DoLogin Security plugin for WordPress is vulnerable to Authentication Bypass via Insufficient Randomness in all versions up to, and including, 4.3. The vulnerability exists because dologin\s::rrand seeds the Mersenne Twister with mtsranddouble microtime 1000000 — discarding the integer-second...

CVE-2026-14495: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

The DoLogin Security plugin for WordPress is vulnerable to Authentication Bypass via Insufficient Randomness in all versions up to, and including, 4.3. The vulnerability exists because dologin\s::rrand seeds the Mersenne Twister with mtsranddouble microtime 1000000 — discarding the integer-second...

PT-2026-60848

Name of the Vulnerable Software and Affected Versions xdgmime affected versions not specified Description A heap-based buffer overflow exists in the xdg mime magic parse magic line function within the xdgmimemagic.c file on little-endian systems. The issue occurs when an application performs MIME...

OESA-2026-2829 ffmpeg security update

FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash. Security Fixes: A use-after-free...

EUVD-2026-40440

Capgo before 12.128.2 contains improper error handling in the /private/acceptinvitation endpoint that returns HTTP 500 instead of safe 4xx errors when magicinvitestring is invalid. Attackers can trigger this vulnerability using only the public key by submitting malformed magicinvitestring values ...

BIT-GHOST-2026-53947 Ghost: Member existence leak via magic link sign-in response

Ghost is a Node.js content management system. From 5.18.0 until 6.21.1, a discrepancy in responses from the members signin endpoints made it possible for an unauthenticated attacker to determine whether a given email address belongs to a registered member of a Ghost site. This vulnerability is...

CVE-2026-56331 Capgo - Improper Error Handling in Accept Invitation Endpoint via Invalid Magic String

Capgo before 12.128.2 contains improper error handling in the /private/acceptinvitation endpoint that returns HTTP 500 instead of safe 4xx errors when magicinvitestring is invalid. Attackers can trigger this vulnerability using only the public key by submitting malformed magicinvitestring values ...