IBM Langflow OSS executes unintended code during Agentic Assistant validation
Langflow OSS
IBM Langflow OSS improperly handles LLM-generated components by executing model-generated Python code in the backend prior to user approval. An attacker can exploit this to trigger side effects such as outbound network access, file system interaction, or data exfiltration.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 8.1
- EPSS
- 0.01 · top 55% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 5 Aug 2026
- last update
- 5 Aug 2026
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2026-08-05CVE-2026-9196: IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant…NVD · nvd.nist.gov/vuln/detail/CVE-2026-9196
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerabilityAgent hijack
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply ChainLLM06:2025 Excessive Agency
- mitre atlas
- AML.T0053 AI Agent Tool Invocation
- tags
- code-execution
- dates
- happened 5 Aug 2026 · first reported 5 Aug 2026
- origin
- NVDVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
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the brief as text
# IBM Langflow OSS executes unintended code during Agentic Assistant validation https://gcdradar.vercel.app/incidents/ibm-langflow-oss-executes-unintended-code-during-agentic-ass · AIR-2026-1243 · closed 2026-08-05 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2026-08-05 - AI role: Attack on AI - Products: Langflow OSS - CVE ids: CVE-2026-9196 - CVSS: 8.1 ## Summary IBM Langflow OSS improperly handles LLM-generated components by executing model-generated Python code in the backend prior to user approval. An attacker can exploit this to trigger side effects such as outbound network access, file system interaction, or data exfiltration. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2026-08-05: CVE-2026-9196: IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant… (https://nvd.nist.gov/vuln/detail/CVE-2026-9196) ## Sources - 2026-08-05 NVD: CVE-2026-9196: IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant… https://nvd.nist.gov/vuln/detail/CVE-2026-9196 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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