CVE-2026-84840Public exploitNetwork attack vectorHinoki check available

Unauthenticated administrator creation via open bootstrap endpoint

Published Sep 2, 2026 · Updated Sep 2, 2026

Missing authentication in TSI DPDP CMS 0.5.0 and earlier allows remote attackers to create a Super Administrator account during setup. InterceptingFilter.java lets the bootstrap setup path bypass authentication, while AdminSetup creates the operator row from attacker-supplied credentials after only checking whether an administrator exists. The takeover is limited to fresh or database-reset deployments, but a successful request grants full application control.

CVSS severityUnavailable
Unscored
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authentication in TSI DPDP CMS 0.5.0 and earlier allows remote attackers to create a Super Administrator account during setup. InterceptingFilter.java lets the bootstrap setup path bypass authentication, while AdminSetup creates the operator row from attacker-supplied credentials after only checking whether an administrator exists. The takeover is limited to fresh or database-reset deployments, but a successful request grants full application control.

The record

CVE
CVE-2026-84840
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
TSI Coop
Product
TSI DPDP CMS
Classifications
CWE-287, CWE-306, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1
  2. Affected versionversion=0.2
  3. Affected versionversion=0.3
  4. Affected versionversion=0.4
  5. Affected versionversion=0.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TSI Coop · TSI DPDP CMSversion=0.1; version=0.2; version=0.3; version=0.4; version=0.5.0

Published CVSS scores

6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
6.5VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
6.4VulDBAV:N/AC:L/Au:N/C:N/I:P/A:P/E:POC/RL:OF/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-306Missing Authentication for Critical Function
T1136Create Account

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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