What’s Vulnerable › Vulnerabilities
CVE-2026-107366: Langflow OSS Authorization Bypass Through User-Controlled Key
- Severity: high (CVSS 8.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-20 · updated 2026-10-21
- Weakness: CWE-639
Description
IBM Langflow OSS 1.0.0 through 1.12.4 contains three message endpoints that perform no ownership verification. Any authenticated user can bulk-delete another user's messages, overwrite message content to inject malicious prompts, or hijack an entire conversation session by reassigning its session ID.
Affected products
- IBM Langflow OSS: from 1.0.0 through 1.12.4
References
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