CVE-2026-25783

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

CVE-2026-24458 DoS attack via login attempts with multi-megabyte passwords

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly handle very long passwords, which allows an attacker to overload the server CPU and memory via executing login attempts with multi-megabyte passwords. Mattermost Advisory ID: MMSA-2026-00587...

CVE-2026-2462 Admin RCE via Malicious Plugin Upload on CI Test Instances

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to restrict plugin installation on CI test instances with default admin credentials which allows an unauthenticated attacker to achieve remote code execution and exfiltrate sensitive configuration data including AWS and...

CVE-2026-2578 Information Disclosure via WebSocket Event When Deleting Unrevealed Burn on Read Posts

Mattermost versions 11.3.x = 11.3.0 fail to preserve the redacted state of burn-on-read posts during deletion which allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event.. Mattermost Advisory ID: MMSA-2026-00579...

CVE-2026-2578 Information Disclosure via WebSocket Event When Deleting Unrevealed Burn on Read Posts

Mattermost versions 11.3.x = 11.3.0 fail to preserve the redacted state of burn-on-read posts during deletion which allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event.. Mattermost Advisory ID: MMSA-2026-00579...

CVE-2026-26246

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to bound memory allocation when processing PSD image files which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted PSD file. Mattermost Advisory I...

CVE-2026-26246 Memory Exhaustion via Malformed PSD File Upload

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to bound memory allocation when processing PSD image files which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted PSD file. Mattermost Advisory I...

CVE-2026-2463 Unauthorized access to invite ID during team creation

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to filter invite IDs based on user permissions, which allows regular users to bypass access control restrictions and register unauthorized accounts via leaked invite IDs during team creation.. Mattermost Advisory ID:...

CVE-2026-2463

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to filter invite IDs based on user permissions, which allows regular users to bypass access control restrictions and register unauthorized accounts via leaked invite IDs during team creation.. Mattermost Advisory ID:...

CVE-2026-2456

Mattermost is affected by CVE-2026-2456 due to an unbounded memory allocation when handling responses from integration action endpoints. A authenticated attacker can cause server memory exhaustion and a denial of service by having a malicious integration server return an arbitrarily large respons...

PT-2026-25809

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to handle incorrectly reported array lengths which allows malicious user to cause OOM errors and crash the server via sending corrupted msgpack frames within websocket messages to calls plugin. Mattermost Advisory ID:...

CVE-2026-2844

Missing Authentication for Critical Function vulnerability in Microchip TimePictra allows Configuration/Environment Manipulation.This issue affects TimePictra: from 11.0 through 11.3 SP2...

EUVD-2026-9101

Missing Authentication for Critical Function vulnerability in Microchip TimePictra allows Configuration/Environment Manipulation.This issue affects TimePictra: from 11.0 through 11.3 SP2...

EUVD-2026-9102

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Microchip TimePictra allows Query System for Information.This issue affects TimePictra: from 11.0 through 11.3 SP2...

CVE-2026-2844

Missing Authentication for Critical Function vulnerability in Microchip TimePictra allows Configuration/Environment Manipulation.This issue affects TimePictra: from 11.0 through 11.3 SP2...

CVE-2026-3010 TimePictra Stored Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Microchip TimePictra allows Query System for Information.This issue affects TimePictra: from 11.0 through 11.3 SP2...

CVE-2026-3010

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Microchip TimePictra allows Query System for Information.This issue affects TimePictra: from 11.0 through 11.3 SP2...

CVE-2026-3010 TimePictra Stored Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Microchip TimePictra allows Query System for Information.This issue affects TimePictra: from 11.0 through 11.3 SP2...

CVE-2026-2844

CVE-2026-2844 (TimePictra) : Missing Authentication for a Critical Function in Microchip TimePictra enables Configuration/Environment Manipulation. Affected: TimePictra 11.0–11.3 SP2. CVSS 4.0 base score 9.3 (CRITICAL); Attack Vector: Network; Privileges Required: None; User Interaction: None; Im...

PT-2026-22467

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Microchip TimePictra allows Query System for Information.This issue affects TimePictra: from 11.0 through 11.3 SP2...