# CVE-2026-111490: Insecure direct object reference (IDOR) vulnerability in the MatchPoint API

Status: published. Published: 2026-11-05. Updated: 2026-11-05.

Insecure direct object reference (IDOR) vulnerability in the MatchPoint API, which relies on the `actingasuser` HTTP header without verifying the requester's authorization for the specified user. Manipulation of sequential identifiers allows access to personal, banking, and financial data, private messages, and QR codes for physical access, as well as the ability to modify third-party accounts, change passwords, impersonate users, and transfer virtual balances.

## Remediation

- fix: The manufacturer has announced the following measures. The server fixes for CVE-2026-111490 and CVE-2026-111493 have already been deployed and are applied regardless of the app version. To address the remaining vulnerabilities, it is recommended that you install the latest available version. (source: CNA: INCIBE)

## Affected products and versions

- TPC Software / Matchpoint: Versions prior to latest one (affected). Source: CNA: INCIBE

## Severity and prioritization

- CVSS 4.0: 9.9 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N; source: CNA: INCIBE

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-tpc-softwares-matchpoint (CNA: INCIBE)

## Provenance

- CNA: INCIBE: https://www.cve.org/CVERecord?id=CVE-2026-111490; retrieved 2026-11-05; source updated 2026-11-05

Revision: 302ebb373eaa792cffc63d31b8c5af40d77bdeb30d0878545c98ad303b84da8c

Canonical: https://y2.dev/cve/CVE-2026-111490

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