gcdRadar
archive/Patch now/AIR-2026-1313
closedclosed 28 Aug 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-19286: RCE vulnerability in IBM Langflow OSS A2A public endpoint

Langflow OSS

Improper enforcement of security restrictions on the A2A public endpoint in IBM Langflow OSS could allow remote attackers to execute arbitrary code. The vulnerability carries a critical CVSS score of 9.8.

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 39% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
28 Aug 2026
last update
28 Aug 2026
CVE ids
CVE-2026-19286other records

Timeline · 1

  1. 28 Aug 2026CVE-2026-19286: IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of…

Sources · 1

Advisories and databases

  1. 2026-08-28
    CVE-2026-19286: IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-19286

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
rce
dates
happened 28 Aug 2026 · first reported 28 Aug 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-2026-19286: RCE vulnerability in IBM Langflow OSS A2A public endpoint

https://gcdradar.vercel.app/incidents/cve-2026-19286-rce-vulnerability-in-ibm-langflow-oss-a2a-pub · AIR-2026-1313 · closed 2026-08-28

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-08-28
- AI role: Attack on AI
- Products: Langflow OSS
- CVE ids: CVE-2026-19286
- CVSS: 9.8

## Summary

Improper enforcement of security restrictions on the A2A public endpoint in IBM Langflow OSS could allow remote attackers to execute arbitrary code. The vulnerability carries a critical CVSS score of 9.8.

## What to do

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

## Latest updates

- 2026-08-28: CVE-2026-19286: IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of… (https://nvd.nist.gov/vuln/detail/CVE-2026-19286)

## Sources

- 2026-08-28 NVD: CVE-2026-19286: IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary code due to improper enforcement of… https://nvd.nist.gov/vuln/detail/CVE-2026-19286

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

Related

  1. closed5.4
    Langflow CVE-2026-17628: IBM Langflow OSS Improper Authentication Vulnerability

    Patch now · Disclosed · since 14 Sep 2026 · CVE-2026-17628

    AI
  2. closed9.6
    Langflow CVE-2026-12944: IBM Langflow OSS Arbitrary Code Execution

    Patch now · Disclosed · since 14 Sep 2026 · CVE-2026-12944

    AI
  3. closed7.5
    Langflow CVE-2026-81265: IBM Langflow OSS security vulnerability

    Patch now · Disclosed · since 10 Sep 2026 · CVE-2026-81265

    AI
  4. closed6.5
    Langflow CVE-2026-79725: IBM Langflow OSS arbitrary file read vulnerability

    Patch now · Disclosed · since 10 Sep 2026 · CVE-2026-79725

    AI
  5. closed9.8
    Langflow CVE-2026-81204: Critical code injection vulnerability in IBM Langflow OSS

    Patch now · Disclosed · since 10 Sep 2026 · CVE-2026-81204

    AI
  6. closed8.8
    Langflow CVE-2026-78569: Code execution vulnerability in IBM Langflow OSS security scanner

    Patch now · Disclosed · since 10 Sep 2026 · CVE-2026-78569

    AI