Is there a public exploit for CVE-2026-18894?

No public exploit for CVE-2026-18894 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-18894?

CVE-2026-18894 scores CVSS 9.8 (v3.1), rated critical.

9.8 Critical

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python component code in a public…

CVE-2026-18894

IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python component code in a public workflow, executing it under the flow owner's runtime context within the server process. This bypasses the intended trust boundary where public execution paths are restricted to server-trusted component code.

Part of the AI stack

This affects Langflow, in Agent frameworks.

Assessment

CVSS: 9.8 (v3.1)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 29 October 2026
Last updated: 30 October 2026
Weakness: CWE-94
Assigner: psirt@us.ibm.com

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

At the source

References

https://www.ibm.com/support/pages/node/7293016

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