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archive/Patch now/AIR-2026-1368
closedclosed 10 Sep 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-81204: Critical code injection vulnerability in IBM Langflow OSS

Langflow OSS

IBM Langflow OSS versions 1.0.0 through 1.11.5 suffer from a code injection vulnerability during graph construction permitting remote code execution. This critical issue has a disclosed advisory but no confirmed real-world attacks.

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
9.8
EPSS
0.01 · top 41% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
10 Sep 2026
last update
10 Sep 2026
CVE ids
CVE-2026-81204other records

Timeline · 1

  1. 10 Sep 2026CVE-2026-81204: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph…

Sources · 1

Advisories and databases

  1. 2026-09-10
    CVE-2026-81204: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-81204

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 vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
langflowrce
dates
happened 10 Sep 2026 · first reported 10 Sep 2026
origin
NVD
Vulnerability 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

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-81204: Critical code injection vulnerability in IBM Langflow OSS

https://gcdradar.vercel.app/incidents/cve-2026-81204-critical-code-injection-vulnerability-in-ibm · AIR-2026-1368 · closed 2026-09-10

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-09-10
- AI role: Attack on AI
- Products: Langflow OSS
- CVE ids: CVE-2026-81204
- CVSS: 9.8

## Summary

IBM Langflow OSS versions 1.0.0 through 1.11.5 suffer from a code injection vulnerability during graph construction permitting remote code execution. This critical issue has a disclosed advisory but no confirmed real-world attacks.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-09-10: CVE-2026-81204: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph… (https://nvd.nist.gov/vuln/detail/CVE-2026-81204)

## Sources

- 2026-09-10 NVD: CVE-2026-81204: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph… https://nvd.nist.gov/vuln/detail/CVE-2026-81204

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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