# CVE-2026-102596: Nango: Production flow RBAC bypass on private flow-read routes

> Attackers with development access can bypass RBAC to read production integration flow metadata in Nango when RBAC is enabled.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **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:** 12 Oct 2026
- **Updated:** 14 Oct 2026
- **Also known as:** GHSA-vc5r-hj76-f35p

## What is CVE-2026-102596?

CVE-2026-102596 is a medium-severity missing authorization vulnerability in NangoHQ nango, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Nango is an open-source platform for connecting agents and products to third-party APIs. Prior to 0.70.9, on accounts with RBAC enabled through a plan with has_rbac=true, two private flow-read routes, GET /api/v1/integrations/:providerConfigKey/flows and GET /api/v1/flow/:flowName, apply webAuth but omit can({ action: 'read', resource: 'flow', scopedBy: envScope }). A same-team user with the development_full_access role can therefore request env=prod and read production integration flow metadata or named flow configuration despite being denied by guarded production routes. Both controllers use res.locals.environment from the authenticated account, so the issue bypasses the production role boundary but does not cross tenant boundaries. This issue is fixed in version 0.70.9 and managed-1.5.11-0.70.8-aae30d044d7e229807d51a3957c212f3fb689e1a

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-102596?


## How do I fix CVE-2026-102596?

No fix has been published for CVE-2026-102596 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-102596 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-102596 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-102596 and fix it if it is affected.

What it is: CVE-2026-102596 is a medium-severity missing authorization vulnerability in NangoHQ nango, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-102596 exists.

Affected product: NangoHQ nango. 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-2026-102596/ (Markdown: https://insights.sbomify.com/CVE-2026-102596/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-102596
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-102596
- OSV: https://osv.dev/vulnerability/CVE-2026-102596

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-102596/
Summaries are generated and may contain mistakes; the official description above is the record.