# CVE-2026-77442: Ryot: `createOrUpdateUserIntegration` trusts a client-supplied `integrationId` with no ownership check, letting any user hijack/overwrite another user's integration (cross-tenant IDOR)

Status: published. Published: 2026-11-06. Updated: 2026-11-06.

Ryot is a self-hosted personal tracking application. Prior to 10.4.0, the createOrUpdateUserIntegration GraphQL mutation in crates/services/user/src/integration_operations.rs allows a low-privileged authenticated user to supply another user's integrationId to create_or_update_user_integration() without an ownership check. SeaORM treats the supplied primary key as an update target, and the operation assigns the caller's user_id while replacing the targeted integration's provider_specifics and other configuration, which can transfer ownership, overwrite configuration, or disable the victim's integration. Exploitation requires obtaining the victim's non-brute-forceable integration id, and the vulnerable update does not disclose existing stored credential values. This issue is fixed in version 10.4.0.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- IgnisDa / ryot: < 10.4.0 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-639, CWE-862

## Exploit evidence

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

## References

- https://github.com/IgnisDa/ryot/security/advisories/GHSA-cjxv-jj8g-vfvj (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/IgnisDa/ryot/pull/1797 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/IgnisDa/ryot/commit/c4dffc68fc0aaf65b65c520d1d45d8da52ea8606 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/IgnisDa/ryot/releases/tag/v10.4.0 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-77442; retrieved 2026-11-06; source updated 2026-11-06

Revision: 3ffa93d782fd39309262b5789e375f020f0b901fdb4a9fca5d7d75ac84ea73c8

Canonical: https://y2.dev/cve/CVE-2026-77442

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