SEPTEMBER 18, 2026
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Case File

CVE-2026-55879

CRITICAL · CVSS 9.3 EPSS 0.29% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-10 · Last synced 2026-08-09

CyberRota Analysis

AI-Generated

The OpenReplay tracking SDK versions prior to 1.25.0 are vulnerable due to improper handling of custom event names and captured page URLs, allowing unauthenticated attackers to inject malicious scripts that execute within the authenticated dashboard. This critical vulnerability can lead to session hijacking by enabling attackers to read session JWTs from localStorage, potentially compromising user accounts. Organizations using affected versions of OpenReplay should prioritize upgrading to version 1.25.0 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55879
Severity
CRITICAL
CVSS
9.3
EPSS
0.29%

Original NVD Description

OpenReplay is a self-hosted session replay suite. From 1.24.0 before 1.25.0, the OpenReplay tracking SDK accepts custom event names and captured page URLs from any visitor using a public project key, stores them in ClickHouse without output encoding, and later renders them in the authenticated dashboard through TextEllipsis and the event-details modal, allowing an unauthenticated attacker to store script that executes in the dashboard origin, reads the session JWT from localStorage, and takes over a dashboard account. This issue is fixed in version 1.25.0.