CVE-2026-45297 Cross-tenant IDOR on feature-flag and assist-stats routes via {project_id} case mismatch
Authenticated users can access or modify other tenants' feature flags due to improper authorization checks on project identifiers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-45297?
CVE-2026-45297 is a medium-severity missing authorization vulnerability in openreplay, published on 28 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenReplay is a self-hosted session replay suite. Prior to 1.26.0, there is a cross-tenant IDOR on feature-flag and assist-stats routes via {project_id} case mismatch. ProjectAuthorizer.__call__ (OSS api/auth/auth_project.py:14-38 and EE ee/api/auth/auth_project.py:14-46) only runs projects.is_authorized(project_id, tenant_id, user_id) + projects.get_project(tenant_id, project_id) when self.project_identifier == "projectId" (camelCase). For EE multi-tenant, feature-flag queries only filter on project_id, never tenant_id. Any authenticated user in tenant A can read/update/delete feature-flag rows belonging to tenant B by iterating the sequential integer project_id + feature_flag_id. OSS is single-tenant by design ({"errors":["tenants already registered"]} on second signup) so there's no cross-tenant impact This vulnerability is fixed in 1.26.0.
Which versions are affected by CVE-2026-45297?
How do I fix CVE-2026-45297?
No fix has been published for CVE-2026-45297 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-45297 being exploited?
There is no known exploitation of CVE-2026-45297 in the wild and no public exploit code.
Sources
Also known as GHSA-5m23-rcj4-cgjx.