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Dossier · Vulnerability

Actively exploited · CISA KEV · NVD published 2026-07-17

CVE-2026-9198

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments

  1. First PoC
  2. 14 days →KEV
  3. 18 days →Metasploit

Signals

Exploited in the wild
Yesadded 2026-08-04 · due 2026-08-07. An observation, not a forecast.
EPSS · 30-day forecast
29%Chance of exploitation in the next 30 days, 98th percentile of all CVEs. A forecast; KEV outranks it.
CVSS · NVD · CRITICAL
9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Internet exposure
not stated by sourcesNo exposure census on this CVE's dispatches.

Exploits

12 known · links only

GitHub PoCs · by trust, then stars9

  1. 0xgh057r3c0n/CVE-2026-9198 ↗Trust ok 100

    IBM Langflow Unauthenticated RCE via Auto-Login Bypass

    ★ 3 · created 2026-07-24

  2. 0xdak/CVE-2026-9198_exploit ↗Trust ok 100

    ★ 1 · created 2026-07-21

  3. rmhowe425/PoC-CVE-2026-9198 ↗Trust ok 100

    Proof of concept exploit code for CVE-2026-9198

    ★ 1 · created 2026-08-05

  4. chessalekin/cve-2026-9198_exploit ↗Trust ok 100

    ★ 0 · created 2026-08-23

  5. CuteeCat/CVE-2026-9198 ↗Trust ok 100

    CVE-2026-9198利用代码

    ★ 0 · created 2026-08-11

  6. joaovicdev/EXPLOIT-CVE-2026-9198 ↗Trust ok 100

    ★ 0 · created 2026-08-29

  7. Procjevt/CVE-2026-9198 ↗Trust ok 100

    ★ 0 · created 2026-08-10

  8. Riftweld/langflow-cve-2026-9198 ↗Trust ok 100

    Independent reconstruction, lab validation, and PoC for CVE-2026-9198, the Langflow unauthenticated RCE (fixed in 1.10.1)

    ★ 0 · created 2026-10-12

  9. ywh-jfellus/CVE-2026-9198 ↗Trust ok 100

    Proof of Concept for CVE-2026-9198 - IBM Langflow Unauthenticated RCE via Auto-Login Bypass

    ★ 0 · created 2026-07-24

Fake proof-of-concept repositories have been used to deliver malware to the researchers who run them. The trust verdict is our engine's heuristic over the repository (account age, what it ships, how its stars arrived); it is a reason to read the code first, not a finding about its author.

Metasploit1

  1. Langflow AI auto_login RCE ↗

    Langflow versions 1.10.0 and below are susceptible to unauthenticated remote code execution. By chaining /api/v1/auto_login with /api/v1/validate/code, a remote unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.

    ruby · seen 2026-10-18

Exploit-DB1

  1. Langflow 1.10.0 - RCE ↗

    created 2026-09-02

Nuclei1

  1. IBM Langflow - Remote Code Execution ↗

    IBM Langflow OSS 1.0.0 through 1.10.0 contains a remote code execution caused by chaining /api/v1/auto_login and /api/v1/validate/code endpoints, letting unauthenticated attackers execute arbitrary code remotely, exploit requires no authentication.

    yaml · seen 2026-10-18

On the wire

1 dispatch
  1. [KEV] CVE-2026-9198: IBM Langflow Code Injection VulnerabilityKEV

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