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CVE-2026-55881— OpenReplay: Cross-tenant session replay disclosure via missing session ownership check in first-mob endpoint

Quick assessment

Affected
openreplay openreplay
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenReplay是OpenReplay公司开源的一款开发人员友好的、自托管的会话重播软件。 OpenReplay 1.22.0版本至1.27.0之前版本存在授权问题漏洞，该漏洞源于会话路径参数验证不当，导致未验证会话是否属于已授权项目，从而允许任何经过身份验证的低权限用户读取其他租户的前15秒会话重放录制数据。

AI Predicted 5.4 Difficulty: Easy EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
openreplay openreplay >= 1.22.0, < 1.27.0 affected
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I. Basic Information for CVE-2026-55881

Vulnerability Information
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Vulnerability Title
OpenReplay: Cross-tenant session replay disclosure via missing session ownership check in first-mob endpoint
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
OpenReplay 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenReplay是OpenReplay公司开源的一款开发人员友好的、自托管的会话重播软件。 OpenReplay 1.22.0版本至1.27.0之前版本存在授权问题漏洞，该漏洞源于会话路径参数验证不当，导致未验证会话是否属于已授权项目，从而允许任何经过身份验证的低权限用户读取其他租户的前15秒会话重放录制数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openreplay openreplay >= 1.22.0, < 1.27.0 -

II. Public POCs for CVE-2026-55881

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III. Intelligence Information for CVE-2026-55881

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Patches & Fixes for CVE-2026-55881 (2)

Vendor Advisories for CVE-2026-55881 (1)

Vendor Pages for CVE-2026-55881 (1)

Same Patch Batch · openreplay · 2026-07-10 · 4 CVEs total

CVE-2026-55879 9.3 CRITICAL OpenReplay: Unauthenticated stored XSS leads to dashboard account takeover
CVE-2026-55880 7.1 HIGH OpenReplay: Cross-user IDOR in notes and dashboard widgets
CVE-2026-57230 5.4 MEDIUM OpenReplay: Authenticated ClickHouse SQL injection via session search

IV. Related Vulnerabilities

Same product: openreplay
Same vendor: openreplay
Same weakness: CWE-639

V. Comments for CVE-2026-55881

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