Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Related CVEs

CVE-2023-4045

Key Information

GHSA ID

GHSA-85vg-hqhq-qvx3

Published

August 1, 2023 3:30 PM

Last Modified

April 4, 2024 6:28 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 16, 2025 6:29 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.