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Information disclosure in tsi-dpdp-cms JSON Schema Validation

Priority HIGH 70CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure, Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-284.

Summary

tsi-coop tsi-dpdp-cms versions 0.5.0, 0.5.1 and 0.5.2 are affected. An unknown function in the JSON Schema Validation component discloses information when the _func argument is manipulated (CWE-200). A remote attacker needs no privileges or user interaction to exploit it, and a public exploit has been released.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A security flaw has been discovered in tsi-coop tsi-dpdp-cms 0.5.0/0.5.1/0.5.2. Impacted is an unknown function of the component JSON Schema Validation. The manipulation of the argument _func results in information disclosure. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.5.3 is recommended to address this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00322 25th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed tsi-dpdp-cms (tsi-coop): 0.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
tsi-cooptsi-dpdp-cms0.5.0; 0.5.1; 0.5.20.5.3Patch availableCNA
  • tsi-dpdp-cms Vendortsi-coop Affected 0.5.0; 0.5.1; 0.5.2 Fixed in 0.5.3 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:tsi-coop:tsi-dpdp-cms:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:tsi-coop:tsi-dpdp-cms:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

Upgrade tsi-coop tsi-dpdp-cms to version 0.5.3, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA tsi-dpdp-cms (tsi-coop) Fixed in 0.5.3

Timeline

  1. 2026-10-12 Threatist record created from CVE-2026-108810
  2. 2026-10-12 Alias added: GHSA-29cc-mcq2-f5pf
  3. 2026-10-12 Priority changed: MEDIUM → LOW
  4. 2026-10-15 CISA SSVC decision points changed
  5. 2026-10-15 Priority changed: LOW → HIGH

References

  • TI-2026-58332 tsi-coop tsi-dpdp-cms client-side enforcement of server-side security CVSS 4.0MEDIUM 6.9
  • TI-2026-58331 tsi-coop tsi-dpdp-cms Bootstrap Setup Endpoint InterceptingFilter.java missing authentication CVSS 4.0MEDIUM 6.9
  • TI-2026-58330 tsi-coop tsi-dpdp-cms Admin Console/DPO Compliance Console web.xml missing authentication CVSS 4.0MEDIUM 6.9

Sources