OpenReplay is a self-hosted session replay suite. Prior to 1.26.0, OpenReplay's Python API exposes several app_apikey routes that trust a caller-provided projectKey after validating only that the API key itself is valid and that the target projectKey exists. The authorization flow does not verify that the authenticated API key and the requested project belong to the same tenant. Because the public tracker design exposes projectKey to browser-side code, an attacker who owns any valid API key for their own tenant can target another tenant's project by reusing that public projectKey. The vulnerable routes allow the attacker to enumerate victim user sessions and then retrieve sensitive session event data across the tenant boundary. This vulnerability is fixed in 1.26.0.

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Thu, 28 May 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Openreplay
Openreplay openreplay
Vendors & Products Openreplay
Openreplay openreplay

Thu, 28 May 2026 18:00:00 +0000

Type Values Removed Values Added
Description OpenReplay is a self-hosted session replay suite. Prior to 1.26.0, OpenReplay's Python API exposes several app_apikey routes that trust a caller-provided projectKey after validating only that the API key itself is valid and that the target projectKey exists. The authorization flow does not verify that the authenticated API key and the requested project belong to the same tenant. Because the public tracker design exposes projectKey to browser-side code, an attacker who owns any valid API key for their own tenant can target another tenant's project by reusing that public projectKey. The vulnerable routes allow the attacker to enumerate victim user sessions and then retrieve sensitive session event data across the tenant boundary. This vulnerability is fixed in 1.26.0.
Title OpenReplay: Cross-tenant information disclosure in app_apikey projectKey routes via missing tenant binding
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-28T16:51:47.094Z

Reserved: 2026-05-11T20:14:43.201Z

Link: CVE-2026-45296

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-05-28T18:16:34.507

Modified: 2026-05-28T18:40:37.990

Link: CVE-2026-45296

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T20:30:25Z

Weaknesses