Security Advisory

CVE-2026-52843

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-15 16:16:07

Last updated 2026-07-15 17:37:26

Assigner GitHub_M

CVSS score 9.3

State PUBLISHED

Description

Lightpanda is a headless browser designed for AI and automation. Prior to 0.2.9, Lightpanda fetch() and XMLHttpRequest unconditionally attached session cookies to every HTTP request, ignoring credentials: omit, credentials: same-origin, credentials: include, and XMLHttpRequest.withCredentials, allowing an attacker-controlled origin in a Lightpanda session to issue authenticated cross-origin requests against a victim origin. This issue is fixed in version 0.2.9.

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