CVE-2026-13448
CRITICAL
CVSS 9.8
langflow_oss
Verified Advisory
Unauthenticated remote code execution in IBM Langflow (CVE-2026-13448)
IBM Langflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint (/api/v1/build_public_tmp/{flow_id}/flow). The vulnerability originates from an incomplete denylist in the validate_public_flow_no_code_execution() function, which fails to block code-execution agent components including OpenDsStarAgent, CodeActAgentSmolagents, and CSVAgent. An unauthenticated remote attacker could exploit this flaw to achieve arbitrary code execution as the service process (CVSS 8.1).
Affected versions:
- 1.0.0-1.10.1
We recommend updating to: 1.10.2.
CVSS 8.1 · our assessment: this_week
Vendor advisory: https://www.ibm.com/support/pages/node/7279997
Details: https://vuln.today/cve/CVE-2026-13448
Verified by vuln.today against published advisories.
Affected versions
- – 1.0.0-1.10.1
Fixed in: 1.10.2
More advisories for langflow_oss
- CVE-2026-8470 – Weak PRNG used for Fernet key generation in IBM Langflow OSS (CVE-2026-8470)
- CVE-2026-9205 – Weak PRNG in cryptographic key derivation in IBM Langflow OSS (CVE-2026-9205)
- CVE-2026-12946 – Remote code execution in IBM Langflow OSS CodeAgent component (CVE-2026-12946)
- CVE-2026-13435 – Python interpreter sandbox bypass in IBM Langflow OSS (CVE-2026-13435)
- CVE-2026-13446 – Hard-coded credentials in IBM Langflow OSS (CVE-2026-13446)
- CVE-2026-13445 – Insecure file path handling in IBM Langflow OSS (CVE-2026-13445)
- CVE-2026-14499 – OS command injection in IBM Langflow OSS Python Interpreter (CVE-2026-14499)
- CVE-2026-7667 – Path traversal in the API Request component of IBM Langflow OSS (CVE-2026-7667)