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    CVE-2026-13448

    IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/build_public_tmp/{flow_id}/flow ). The vulnerability stems from an incomplete denylist in the validate_public_flow_no_code_execution() function that fails to block several code-execution agent components including OpenDsStarAgent, CodeActAgentSmolagents, and CSVAgent.

    Published:Jul 17, 2026
    Last Modified:Jul 26, 2026
    EPS:Jul 17, 2026
    EPSS Score:0.00456
    CVSS Score:8.1

    Affected Products

    Vendor
    Ibm
    Product
    Langflow Oss

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-78571 (CVSS 8.8) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code du…
    CVE-2026-78575 (CVSS 8.8) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary command…
    CVE-2026-79723 (CVSS 5) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to obtain sensitive informat…
    CVE-2026-79724 (CVSS 9.8) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary OS commands due to im…
    CVE-2026-79725 (CVSS 6.5) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to read arbitrary files due …
    CVE-2026-79742 (CVSS 8.8) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code du…
    CVE-2026-81204 (CVSS 9.8) — IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code inje…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High