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Description

OpenReplay is a self-hosted session replay suite. From 1.22.0 before 1.27.0, getFirstMob returned 15-second presigned S3 download URLs for a session's DOM-replay recording based solely on the session path parameter, while validateProjectAccess checked only that the project belonged to the requester's tenant and did not verify that the session belonged to that project, allowing any authenticated low-privilege user to read another tenant's first 15 seconds of session-replay recording data. This issue is fixed in version 1.27.0.

PUBLISHED Reserved 2026-06-17 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M




HIGH: 7.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

>= 1.22.0, < 1.27.0
affected

References

github.com/...replay/security/advisories/GHSA-w2x5-m7w5-479h

github.com/openreplay/openreplay/pull/4692

github.com/...ommit/ddd09117f644a309c7b040cda0a11ff9433e9e49

github.com/openreplay/openreplay/releases/tag/v1.27.0

cve.org (CVE-2026-55881)

nvd.nist.gov (CVE-2026-55881)

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