CVE-2026-6345

Mattermost advisory CVE-2026-6345 affects Mattermost versions 11.4.x ≤ 11.4.3, 11.5.x ≤ 11.5.1 and 10.11.x ≤ 10.11.13. The issue is described as failing to prevent disclosure of created user passwords during the Slack import process, which could allow a malicious actor to impersonate a user using...

GHSA-GXHX-2686-5H9G slack-go `SecretsVerifier` accepts empty signing secret without precondition

SecretsVerifier in slack-go/slack before v0.23.1 accepts an empty signing secret without error. If an application is misconfigured e.g., an unset or empty SLACKSIGNINGSECRET, NewSecretsVerifier builds an HMAC-SHA256 keyed with an empty string, allowing an unauthenticated attacker to forge a valid...

slack-go `SecretsVerifier` accepts empty signing secret without precondition

SecretsVerifier in slack-go/slack before v0.23.1 accepts an empty signing secret without error. If an application is misconfigured e.g., an unset or empty SLACKSIGNINGSECRET, NewSecretsVerifier builds an HMAC-SHA256 keyed with an empty string, allowing an unauthenticated attacker to forge a valid...

Exploit for Out-of-bounds Read in Microsoft

CVE-2025-24055 — Unauthenticated Slack OAuth Install in Langfu...

Exploit for Improper Access Control in Langfuse

CVE-2026-24055 — Unauthenticated Slack OAuth Install in Langfu...

Malicious code in 6cc (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 4956159952af1b6af08b70ab219d7827988fae1fd82994f29090a1f2bf299094 index.js executes on require as an IIFE that reassigns console.warn/error and adds console.SL/FB/N to forward arguments via fetch to a hardcoded...

MAL-2026-3675 Malicious code in 6cc (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 4956159952af1b6af08b70ab219d7827988fae1fd82994f29090a1f2bf299094 index.js executes on require as an IIFE that reassigns console.warn/error and adds console.SL/FB/N to forward arguments via fetch to a hardcoded...

CVE-2026-44695

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

EUVD-2026-29343

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

CVE-2026-44695 Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

CVE-2026-44695 Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

CVE-2026-44695

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

CVE-2026-44695

Summary: CVE-2026-44695 affects Outline before version 1.7.1. The Slack OAuth flow for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. If an attacker can obtain a Slack OAuth code for the same Outline Slack client, they can cause a logged-in Outline user to comple...

CVE-2026-44695 Outline: Slack OAuth state can link a victim Outline account to an attacker Slack identity

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

Outline 跨站请求伪造漏洞

Outline is an open-source knowledge base developed by Outline. Versions prior to Outline 1.7.1 contained a cross-site request forgeing vulnerability. This vulnerability stemmed from the Slack integration callback accepting unsigned OAuth state values, which could allow third parties to link user...

CVE-2026-44695: Cross-Site Request Forgery (CSRF)

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a...

PT-2026-39865

Name of the Vulnerable Software and Affected Versions Outline versions prior to 1.7.1 Description The Slack integration callback for the endpoint "/auth/slack.post" accepts an unsigned, session-independent OAuth state value. This allows a third party with a Slack OAuth code for the same Outline...

GHSA-QM77-8QJP-4VCM OpenClaw: Slack thread context could include messages from non-allowlisted senders

Summary Before OpenClaw 2026.4.2, Slack thread starter and thread-history context fetched through the API was not filtered by the effective sender allowlist. Messages from non-allowlisted senders could still enter the agent context when an allowlisted user replied in the same thread. Impact A Sla...

OpenClaw: Slack thread context could include messages from non-allowlisted senders

Summary Before OpenClaw 2026.4.2, Slack thread starter and thread-history context fetched through the API was not filtered by the effective sender allowlist. Messages from non-allowlisted senders could still enter the agent context when an allowlisted user replied in the same thread. Impact A Sla...

NPM: OpenClaw: Slack thread context could include messages from non-allowlisted senders

NPM: OpenClaw: Slack thread context could include messages from non-allowlisted senders vulnerability discovered by ? in WordPress Npm openclaw versions = 2026.4.1...