# CVE-2026-120191: Presenton API missing authentication

Source: https://junglewise.ai/threats/cve-2026-120191-a-weakness-has-been-identified-in-presenton-up-to-0-9-11-beta  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-01. Updated: 2026-11-01  
License: CC BY 4.0 with a link back

CVE-2026-120191 · Severity: high · CVSS 7.3 · Published 2026-11-01

Presenton is an open-source AI-powered presentation generator with an API component. An authentication weakness in the API allows remote attackers to bypass login requirements and access the application without valid credentials, potentially enabling unauthorized presentation generation or data access.

Technologies: [Presenton](https://junglewise.ai/threats/technologies/presenton). Vendors: [Presenton](https://junglewise.ai/threats/vendors/presenton).

## Quick answers

**Is CVE-2026-120191 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-120191 being exploited in the wild.

**How severe is CVE-2026-120191?** High severity, with a CVSS score of 7.3, published 1 November 2026.

**Which products and versions are affected?** Presenton up to 0.9.11-beta.

**Is there a fix for CVE-2026-120191?** Yes: fixed in 0.9.12-beta. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-120191 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-120191?** Check whether you run Presenton at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 0.9.12-beta

## Technical details

A missing authentication vulnerability exists in an unknown functionality of the Presenton API component, allowing unauthenticated remote access. The attack requires no special privileges or user interaction. Attackers can exploit this to access API endpoints without proper authorization, gaining the ability to interact with the presentation generation system. The vulnerability is fixed in version 0.9.12-beta.

## Affected products

- Presenton Presenton up to 0.9.11-beta

## Timeline

- 2026-11-01: disclosed
- 2026-10-12: patched

## References

- [https://github.com/presenton/presenton/](https://github.com/presenton/presenton/)
- [https://github.com/presenton/presenton/commit/44c8a61122b21f17642d717b0c4d6f2c54c0f180](https://github.com/presenton/presenton/commit/44c8a61122b21f17642d717b0c4d6f2c54c0f180)

## Related threats

- [Presenton Desktop Authentication Middleware information disclosure](https://junglewise.ai/threats/cve-2026-120192-a-security-vulnerability-has-been-detected-in-presenton-up-to-0)
- [Presenton authentication bypass in MCP server endpoint](https://junglewise.ai/threats/cve-2026-58446-presenton-authentication-bypass-in-mcp-server-endpoint)