CVE-2026-7872 Path Traversal Vulnerability in File Component Leading to Arbitrary File Read and Authentication Bypass

High 7.5 Published 17 Jul 2026 Updated 20 Jul 2026

Authenticated attackers can read arbitrary files to steal JWT keys and forge tokens, enabling full account takeover in Langflow OSS.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-7872?

CVE-2026-7872 is a high-severity path traversal vulnerability in Langflow Langflow, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

IBM Langflow OSS 1.0.0 through 1.10.0 allows an authenticated attacker to read arbitrary files including the JWT signing key and forge authentication tokens for any user.

Weakness: CWE-22

Which versions are affected by CVE-2026-7872?

It affects 1 product.

Products include Langflow Langflow.

How do I fix CVE-2026-7872?

No fix has been published for CVE-2026-7872 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-7872 being exploited?

There is no known exploitation of CVE-2026-7872 in the wild and no public exploit code.

All Langflow Langflow vulnerabilities

Sources

Also known as GHSA-c975-75gc-hhvw.