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archive/Patch now/AIR-2026-1286
closedclosed 13 Aug 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-19297: IBM Langflow OSS authentication restriction vulnerability

Langflow OSS

IBM Langflow OSS contains an improper restriction of excessive authentication attempts. This flaw could allow remote attackers to gain unauthorized access to user accounts.

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
9.1
EPSS
0.01 · top 51% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
13 Aug 2026
last update
13 Aug 2026
CVE ids
CVE-2026-19297other records

Timeline · 1

  1. 13 Aug 2026CVE-2026-19297: IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper…

Sources · 1

Advisories and databases

  1. 2026-08-13
    CVE-2026-19297: IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-19297

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
auth-bypasslangflow
dates
happened 13 Aug 2026 · first reported 13 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-2026-19297: IBM Langflow OSS authentication restriction vulnerability

https://gcdradar.vercel.app/incidents/cve-2026-19297-ibm-langflow-oss-authentication-restriction-v · AIR-2026-1286 · closed 2026-08-13

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-08-13
- AI role: Attack on AI
- Products: Langflow OSS
- CVE ids: CVE-2026-19297
- CVSS: 9.1

## Summary

IBM Langflow OSS contains an improper restriction of excessive authentication attempts. This flaw could allow remote attackers to gain unauthorized access to user accounts.

## What to do

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

## Latest updates

- 2026-08-13: CVE-2026-19297: IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper… (https://nvd.nist.gov/vuln/detail/CVE-2026-19297)

## Sources

- 2026-08-13 NVD: CVE-2026-19297: IBM Langflow OSS 1.0.0 through 1.9.6 could allow a remote attacker to obtain unauthorized access to user accounts due to improper… https://nvd.nist.gov/vuln/detail/CVE-2026-19297

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

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