CVE-2026-24764: OpenClaw has Remote Code Execution via System Prompt Injection in Slack Channel Descriptions
Summary When the Slack integration is enabled, Slack channel metadata (topic/description) could be incorporated into the model's system prompt.
Impact Prompt injection is a documented risk for LLM-driven systems. This issue increased the injection surface by allowing untrusted Slack channel metadata to be treated as higher-trust system input.
This is relevant only for deployments that enable Slack. In deployments where tool execution is enabled, a successful injection could lead to unintended tool invocations and/or unintended data exposure.
Affected Packages / Versions - npm: openclaw < 2026.2.3
Patched Versions - npm: openclaw >= 2026.2.3
Mitigation - If you do not use Slack: no action required. - If you use Slack: upgrade to a patched version.
Fix Commit(s) - 35eb40a7000b59085e9c638a80fd03917c7a095e
Thanks @KonstantinMirin for reporting.
Other sources
OpenClaw (formerly Clawdbot) is a personal AI assistant users run on their own devices. In versions 2026.2.2 and below, when the Slack integration is enabled, channel metadata (topic/description) can be incorporated into the model's system prompt. Prompt injection is a documented risk for LLM-driven systems. This issue increases the injection surface by allowing untrusted Slack channel metadata to be treated as higher-trust system input. This issue has been fixed in version 2026.2.3.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-24764?
CVE-2026-24764 is considered a moderate severity vulnerability due to the potential for prompt injection attacks.
How does CVE-2026-24764 impact users?
CVE-2026-24764 allows untrusted Slack channel metadata to be incorporated into the model's system prompt, increasing the risk of prompt injection.
How do I fix CVE-2026-24764?
To fix CVE-2026-24764, upgrade the affected software 'openclaw' to version 2026.2.3 or later.
What versions are affected by CVE-2026-24764?
CVE-2026-24764 affects all versions of 'openclaw' prior to version 2026.2.3.
Is CVE-2026-24764 publicly known?
Yes, CVE-2026-24764 is publicly documented and can be referenced in security advisories.