# CVE-2026-111684: Magistrala through 1.0.0 Cross-Tenant Authorization Bypass in Certs Service

> Authenticated users can bypass tenant isolation to view, issue, or revoke other tenants' device certificates in Magistrala.

- **Severity:** High 7.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA: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:** 16 Oct 2026
- **Updated:** 21 Oct 2026
- **Also known as:** GHSA-vh76-85cj-956g

## What is CVE-2026-111684?

CVE-2026-111684 is a high-severity missing authorization vulnerability in absmach magistrala, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Magistrala through 1.0.0 contains an authorization bypass vulnerability that allows authenticated workspace members to view, issue, and revoke other tenants' device certificates by supplying foreign serials or entity ids. Attackers can call RevokeBySerial, RevokeAll, ViewCert, ListCerts, or IssueCert under their own workspace path to disconnect other tenants' devices, disclose certificates, and mint CA-signed certificates for their device ids.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-111684?


## How do I fix CVE-2026-111684?

No fix has been published for CVE-2026-111684 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111684 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111684 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111684 and fix it if it is affected.

What it is: CVE-2026-111684 is a high-severity missing authorization vulnerability in absmach magistrala, published on 16 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-2026-111684 exists.

Affected product: absmach magistrala. 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-2026-111684/ (Markdown: https://insights.sbomify.com/CVE-2026-111684/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111684
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111684
- OSV: https://osv.dev/vulnerability/CVE-2026-111684

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111684/
Summaries are generated and may contain mistakes; the official description above is the record.