Remote Code Execution Vulnerability in IBM Langflow OSS
CVE-2026-19286

9.8CRITICAL

Key Information:

Vendor

IBM
Status
Langflow Oss
Vendor
CVE Published:
28 August 2026

What is CVE-2026-19286?

IBM Langflow OSS versions from 1.0.0 to 1.11.1 are susceptible to a security flaw that may allow an attacker to execute arbitrary code remotely. This issue arises from insufficient enforcement of security restrictions on the A2A public endpoint, which could potentially compromise the integrity and confidentiality of the system. It is crucial for users to apply the latest patches provided by the vendor to mitigate the risk associated with this vulnerability.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.11.1

References

https://www.ibm.com/support/pages/node/7284733
vendor-advisorypatch

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.