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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History
Wed, 15 Jul 2026 18:30:00 +0000
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ssvc
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Wed, 15 Jul 2026 16:30:00 +0000
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| 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. | |
| Title | Lightpanda: fetch() and XMLHttpRequest attach session cookies to cross-origin requests regardless of credentials mode | |
| Weaknesses | CWE-346 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-15T17:37:26.880Z
Reserved: 2026-06-08T18:41:27.724Z
Link: CVE-2026-52843
Updated: 2026-07-15T17:37:21.915Z
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