# CVE-2026-0772: Langflow Disk Cache Deserialization of Untrusted Data Remote Code Execution Vulnerability

> Remote attackers with authentication can execute arbitrary code via unsafe deserialization in the Langflow disk cache service.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jan 2026
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-fx5r-9f32-2jc8

## What is CVE-2026-0772?

CVE-2026-0772 is a high-severity unsafe deserialization vulnerability in Langflow Langflow, published on 23 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Langflow Disk Cache Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is required to exploit this vulnerability.

The specific flaw exists within the disk cache service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-27919.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2026-0772?

It affects 1 product.


Products: Langflow Langflow.

## How do I fix CVE-2026-0772?

No fix has been published for CVE-2026-0772 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-0772 being exploited?

There is no known exploitation of CVE-2026-0772 in the wild and no public exploit code.

## Other vulnerabilities in Langflow Langflow

- [CVE-2026-9198](https://insights.sbomify.com/CVE-2026-9198/): IBM Langflow Code Injection (critical 9.8, exploited in the wild)
- [CVE-2026-0770](https://insights.sbomify.com/CVE-2026-0770/): Langflow Inclusion of Functionality from Untrusted Control Sphere (critical 9.8, exploited in the wild)
- [CVE-2025-3248](https://insights.sbomify.com/CVE-2025-3248/): Langflow Missing Authentication (critical 9.8, exploited in the wild)
- [CVE-2025-34291](https://insights.sbomify.com/CVE-2025-34291/): Langflow Origin Validation Error (critical 9.4, exploited in the wild)
- [CVE-2026-33017](https://insights.sbomify.com/CVE-2026-33017/): Langflow Code Injection (critical 9.3, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-0772 and fix it if it is affected.

What it is: CVE-2026-0772 is a high-severity unsafe deserialization vulnerability in Langflow Langflow, published on 23 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-0772 in the wild and no public exploit code.

Affected product: Langflow Langflow. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-0772/ (Markdown: https://insights.sbomify.com/CVE-2026-0772/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-0772
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0772
- OSV: https://osv.dev/vulnerability/CVE-2026-0772

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-0772/
Summaries are generated and may contain mistakes; the official description above is the record.