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archive/Patch now/AIR-2026-1661
closedclosed 29 Oct 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-93680: IBM Langflow OSS Authentication Bypass Vulnerability

IBM Langflow OSS

Improper authentication in IBM Langflow OSS versions 1.0.0 through 1.12.8 allows remote attackers to bypass security restrictions. The vulnerability has been rated critical with a CVSS score of 9.8.

why this severityCritical CVSS 9.8 vulnerability with no confirmed exploitation yet.

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
0.02 · top 18% · 2026-11-13
EPSS scores by FIRST
fix status
Patched
affected
IBM Langflow OSS 1.0.0 to 1.12.8
fixed in
1.13.0
first report
29 Oct 2026
last update
2 Nov 2026
CVE ids
CVE-2026-93680other records

What to do

Upgrade Langflow OSS to version 1.13.0 immediately to mitigate critical authentication bypass and code execution vulnerabilities.

Timeline · 2

  1. 29 Oct 2026CVE-2026-93680: IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to improper…
  2. 2 Nov 2026Vendor releases version 1.13.0 to resolve critical authentication bypass and remote code execution vulnerabilities

Sources · 2

Advisories and databases

  1. 2026-10-29
    CVE-2026-93680: IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to improper…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-93680

News and write-ups

  1. 2026-11-02
    Critical Langflow Flaws Could Let Unauthenticated Attackers Run Code on Servers
    The Hacker News · thehackernews.com/2026/11/critical-langflow-flaws-could-let.html

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
Patched
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
auth-bypasslangflow
dates
happened 29 Oct 2026 · first reported 29 Oct 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 2026-10-29 23:23Z · updated 2026-11-02 20:57Z

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-2026-93680: IBM Langflow OSS Authentication Bypass Vulnerability

https://gcdradar.vercel.app/incidents/cve-2026-93680-ibm-langflow-oss-authentication-bypass-vulner · AIR-2026-1661 · closed 2026-10-29

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Critical CVSS 9.8 vulnerability with no confirmed exploitation yet.
- Fix status: Patched
- First reported: 2026-10-29
- AI role: Attack on AI
- Products: IBM Langflow OSS
- CVE ids: CVE-2026-93680
- CVSS: 9.8

## Summary

Improper authentication in IBM Langflow OSS versions 1.0.0 through 1.12.8 allows remote attackers to bypass security restrictions. The vulnerability has been rated critical with a CVSS score of 9.8.

## What to do

Upgrade Langflow OSS to version 1.13.0 immediately to mitigate critical authentication bypass and code execution vulnerabilities.

## Affected and fixed versions

- Affected: IBM Langflow OSS 1.0.0 to 1.12.8
- Fixed in: 1.13.0

## Latest updates

- 2026-11-02: Vendor releases version 1.13.0 to resolve critical authentication bypass and remote code execution vulnerabilities (https://thehackernews.com/2026/11/critical-langflow-flaws-could-let.html)
- 2026-10-29: CVE-2026-93680: IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to improper… (https://nvd.nist.gov/vuln/detail/CVE-2026-93680)

## Sources

- 2026-10-29 NVD: CVE-2026-93680: IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to improper… https://nvd.nist.gov/vuln/detail/CVE-2026-93680
- 2026-11-02 The Hacker News: Critical Langflow Flaws Could Let Unauthenticated Attackers Run Code on Servers https://thehackernews.com/2026/11/critical-langflow-flaws-could-let.html

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

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