# CVE-2026-84840: TSI DPDP CMS missing authentication in bootstrap setup endpoint

Source: https://junglewise.ai/threats/cve-2026-84840-tsi-dpdp-cms-missing-authentication-in-bootstrap-setup-endpoint  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-02. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-84840 · Severity: medium · CVSS 6.5 · Published 2026-09-02

TSI DPDP CMS is an open-source consent management system used to handle personal data under India's DPDP Act. A missing authentication vulnerability allows unauthenticated attackers to create a Super Administrator account on fresh or reset deployments by sending a single HTTP request to the bootstrap setup endpoint, granting complete control over the system and all data it manages.

Technologies: [Tsi-Coop Tsi-Dpdp-Cms](https://junglewise.ai/threats/technologies/tsi-dpdp-cms). Vendors: [Tsi-Coop](https://junglewise.ai/threats/vendors/tsi-coop).

## Quick answers

**Is CVE-2026-84840 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-84840 being exploited in the wild.

**How severe is CVE-2026-84840?** Medium severity, with a CVSS score of 6.5, published 2 September 2026.

**Which products and versions are affected?** Tsi-Coop Tsi-Dpdp-Cms up to 0.5.0.

**Is there a fix for CVE-2026-84840?** A patch was published on 2026: Fixed in version 0.5.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-84840 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-84840?** Check whether you run Tsi-Coop Tsi-Dpdp-Cms 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.

## Technical details

The vulnerability is a missing authentication issue (CWE-306) in the POST /api/v1/bootstrap/setup endpoint and its associated setup wizard UI (/console/setup/init.html). The endpoint processes requests with a JSON payload to create a Super Administrator account without requiring any credentials. The only server-side protection is a state check that returns HTTP 500 if the system is already configured, which provides no protection on fresh deployments. An unauthenticated attacker can invoke the endpoint remotely and instantly gain administrative control. The issue affects versions up to 0.5.0, and a fix is available in version 0.5.1 and later.

## Affected products

- tsi-coop tsi-dpdp-cms up to 0.5.0

## Timeline

- 2026-09-02: disclosed
- 2026: patched: Fixed in version 0.5.1

## References

- [https://github.com/mano257200/TSI-DPDP-CMS-Unauthenticated-Super-Admin-Bootstrap-Endpoint/blob/main/README.md](https://github.com/mano257200/TSI-DPDP-CMS-Unauthenticated-Super-Admin-Bootstrap-Endpoint/blob/main/README.md)
- [https://github.com/tsi-coop/tsi-dpdp-cms/](https://github.com/tsi-coop/tsi-dpdp-cms/)

## Related threats

- [TSI DPDP CMS information disclosure via unauthenticated schema enumeration](https://junglewise.ai/threats/cve-2026-108810-a-security-flaw-has-been-discovered-in-tsi-coop-tsi-dpdp-cms-0-5)
- [TSI DPDP CMS client-side authentication bypass](https://junglewise.ai/threats/cve-2026-84841-tsi-dpdp-cms-client-side-authentication-bypass)