Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91.

Related CVEs

CVE-2021-29982

Key Information

GHSA ID

GHSA-9x2f-wq24-4m7j

Published

May 24, 2022 7:11 PM

Last Modified

May 24, 2022 7:11 PM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: September 10, 2025 6:31 AM

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