Vulnerability · Published Sep 2, 2026 · Assigned by VulDB
CVE-2026-84841tsi-coop tsi-dpdp-cms client-side enforcement of server-side security
High 7.3
In plain English
A high-severity security flaw in tsi-dpdp-cms from tsi-coop. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Official description
A security flaw has been discovered in tsi-coop tsi-dpdp-cms up to 0.5.0. This vulnerability affects unknown code. The manipulation results in client-side enforcement of server-side security. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.5.1 is able to resolve this issue. It is recommended to upgrade the affected component.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tsi-coop | tsi-dpdp-cms | 0.10.20.30.40.5.0 |
Weakness: CWE-602 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-398083 | tsi-coop tsi-dpdp-cms client-side enforcement of server-side security vdb-entry
- VDB-398083 | CTI Indicators (IOB, IOC) signature, permissions-required
- CVE-2026-84841 | CVE Analysis and Report third-party-advisory
- Submit #885661 | TSI Coop TSI DPDP CMS 0.4.8 Client-Side Enforcement of Server-Side Security third-party-advisory
- https://github.com/mano257200/TSI-DPDP-CMS-Client-Side-Only-Authentication-Allows-Complete-Bypass-via-Direct-HTTP-Request/blob/main/README.md exploit
- https://github.com/tsi-coop/tsi-dpdp-cms/blob/main/docs/security-fixes/1.md related
- https://github.com/tsi-coop/tsi-dpdp-cms/releases/tag/v0.5.1 patch
- https://github.com/tsi-coop/tsi-dpdp-cms/ product