CVE-2026-33760: Langflow is a tool for building and deploying AI-powered agents and workflows

Q: How do I fix CVE-2026-33760?

langflow: upgrade to 1.9.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-33760 being exploited?

CVE-2026-33760 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33760 affect?

CVE-2026-33760 affects langflow. Severity is high (CVSS 8.8). Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, session

Q: How urgent is CVE-2026-33760?

Priority 46/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-33760 is a high-severity flaw (CVSS 8.8) affecting langflow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without verifying that the authenticated requester owns the targeted resource. Any authenticated user can read, modify, rename, or permanently delete another user'

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-639
Published	2026-06-23
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: langflow

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-23 17:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

langflow langflow UPGRADE

Affected: < 1.9.0

Fixed in: 1.9.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy langflow || rpm -q langflow || langflow --version

2. UPGRADE to 1.9.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade langflow

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade langflow

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33760?

langflow: upgrade to 1.9.0. Exact commands for each OS are on this page.

Is CVE-2026-33760 being exploited?

CVE-2026-33760 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33760 affect?

CVE-2026-33760 affects langflow. Severity is high (CVSS 8.8). Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, session

How urgent is CVE-2026-33760?

Priority 46/100. High severity; Public exploit reference

Related CVEs

CVE-2026-7524 CRITICAL 9.8 UPGRADE IBM Langflow OSS 1.0.0 through 1.9.1 could allow remote code execution due to improper validation of symbolic
CVE-2026-48519 CRITICAL 9.6 UPGRADE Langflow is a tool for building and deploying AI-powered agents and workflows
CVE-2026-42867 MEDIUM 6.5 UPGRADE Langflow is a tool for building and deploying AI-powered agents and workflows
CVE-2026-48520 MEDIUM 6.1 UPGRADE Langflow is a tool for building and deploying AI-powered agents and workflows
CVE-2026-7787 HIGH 7.5 UPGRADE IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information

References

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