EUVD-2026-31646

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to filter nil elements from outgoing webhook attachment payloads before processing, which allows an authenticated user to cause a denial of service server process termination via a crafted webhook...

CVE-2026-4915

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to filter nil elements from outgoing webhook attachment payloads before processing, which allows an authenticated user to cause a denial of service server process termination via a crafted webhook...

CVE-2026-4915

Mattermost is affected in CVE-2026-4915 across multiple release streams (11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x

CVE-2026-4915 Server panic via outgoing webhook responses

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to filter nil elements from outgoing webhook attachment payloads before processing, which allows an authenticated user to cause a denial of service server process termination via a crafted webhook...

Malicious code in your-unique-package-name1 (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 8a82d9cce1cd5cae0e9bae039dc08eccc18ec4494b182d11ab35c25ac4496d34 On import in a browser context, index.js creates a hidden iframe pointing at https://www.pendo.io/?builder.frameEditing=true and postMessages a...

MAL-2026-4737 Malicious code in your-unique-package-name1 (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 8a82d9cce1cd5cae0e9bae039dc08eccc18ec4494b182d11ab35c25ac4496d34 On import in a browser context, index.js creates a hidden iframe pointing at https://www.pendo.io/?builder.frameEditing=true and postMessages a...

MAL-2026-4623 Malicious code in npm-builderio-qwik-poc (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 11a743cdce28dd141d636ff13baaee44df53fbaaed17efdc5a7380281b7097e1 The package's main entry index.js is a working browser exploit, not a library. When loaded in a DOM context, it creates a hidden iframe pointing at...

Malicious code in npm-builderio-qwik-poc (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 11a743cdce28dd141d636ff13baaee44df53fbaaed17efdc5a7380281b7097e1 The package's main entry index.js is a working browser exploit, not a library. When loaded in a DOM context, it creates a hidden iframe pointing at...

CVE-2026-4915: Improper Check for Unusual or Exceptional Conditions

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to filter nil elements from outgoing webhook attachment payloads before processing, which allows an authenticated user to cause a denial of service server process termination via a crafted webhook...

PT-2026-43013

Name of the Vulnerable Software and Affected Versions Mattermost version 11.6.0 Mattermost version 11.5.3 Mattermost version 11.4.4 Mattermost version 10.11.14 Description An issue exists where the system fails to filter nil elements from outgoing webhook attachment payloads before processing. Th...

Mattermost security vulnerabilities

Mattermost is an open source collaboration platform from Mattermost, Inc. in the United States. A security vulnerability in Mattermost versions 11.6.0 and prior to 11.6.x, 11.5.3 and prior to 11.5.x, 11.4.4 and prior to 11.4.x, and 10.11.14 and prior to 10.11.x, which stems from a failure to filt...

MAL-2026-4660 Malicious code in react-malicious-clone (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector f03498aa5167e02289d4c8984282f6a1b6321af60fb9ff04d0ce9503faefffdd Package name impersonates React and the package.json copies React's description, homepage react.dev, bugs URL, and canary versioning scheme. On...

Malicious code in react-malicious-clone (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector f03498aa5167e02289d4c8984282f6a1b6321af60fb9ff04d0ce9503faefffdd Package name impersonates React and the package.json copies React's description, homepage react.dev, bugs URL, and canary versioning scheme. On...

GHSA-99GV-2M7H-3HH9 Nezha Monitoring: RoleMember can run shell on every server (cross-tenant RCE) via POST /api/v1/cron

Summary nezha's dashboard supports two user roles: RoleAdmin Role==0 and RoleMember Role==1. The cron routes POST /api/v1/cron and PATCH /api/v1/cron/:id are wired through commonHandler any authenticated user rather than adminHandler, and the per-server permission check on cron creation has a...

CVE-2026-39969

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint POST /v1/workspaces/workspaceId/whatsapp/credentialsId/webhook does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both...

CVE-2026-39969 TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint POST /v1/workspaces/workspaceId/whatsapp/credentialsId/webhook does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both...

CVE-2026-39969 TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint POST /v1/workspaces/workspaceId/whatsapp/credentialsId/webhook does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both...

EUVD-2026-31485

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint POST /v1/workspaces/workspaceId/whatsapp/credentialsId/webhook does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both...

CVE-2026-39969 TypeBot: WhatsApp Webhook Endpoint Missing Signature Verification

TypeBot is a chatbot builder tool. In versions 3.16.0 and prior, the WhatsApp Cloud API webhook endpoint POST /v1/workspaces/workspaceId/whatsapp/credentialsId/webhook does not verify the x-hub-signature-256 HMAC signature included by Meta in every webhook delivery. The webhook URL exposes both...

CVE-2026-39969

CVE-2026-39969 (TypeBot) affects TypeBot prior to 3.17.0. The WhatsApp Cloud API webhook endpoint POST /v1/workspaces/{workspaceId}/whatsapp/{credentialsId}/webhook did not verify the x-hub-signature-256 HMAC in deliveries. The endpoint also exposes workspaceId and credentialsId in the URL path, ...