# CVE-2026-105139: Obot 0.26.0 before 0.26.2 Authorization Bypass via vMCP Profile Prompts and Resources

> Authenticated users can bypass authorization to access ungranted prompts and resources in Obot vMCP profiles.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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:** 7 Oct 2026
- **Updated:** 7 Oct 2026
- **Also known as:** GHSA-xhpw-65qw-wj6m

## What is CVE-2026-105139?

CVE-2026-105139 is a medium-severity missing authorization vulnerability in obot-platform obot, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Obot 0.26.0 before 0.26.2 contains an authorization bypass vulnerability that allows authenticated users matching any vMCP profile to reach prompts and resources of ungranted components. Because profiles were enforced only on tools, attackers can access prompts, resources, and resource templates through the vMCP owner's shared component connection.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-105139?


## How do I fix CVE-2026-105139?

No fix has been published for CVE-2026-105139 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-105139 being exploited?

There is no known exploitation of CVE-2026-105139 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105139 and fix it if it is affected.

What it is: CVE-2026-105139 is a medium-severity missing authorization vulnerability in obot-platform obot, published on 7 Oct 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-2026-105139 in the wild and no public exploit code.

Affected product: obot-platform obot. 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-2026-105139/ (Markdown: https://insights.sbomify.com/CVE-2026-105139/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105139
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105139
- OSV: https://osv.dev/vulnerability/CVE-2026-105139

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105139/
Summaries are generated and may contain mistakes; the official description above is the record.