Information Exposure Affecting Firefox package, versions [,153.0.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Aug 2026
- disclosed4 Aug 2026
- creditUnknown
Introduced: 4 Aug 2026
CVE-2026-18809 (opens in a new tab)How to fix?
Upgrade Firefox to version 153.0.3 or higher.
Overview
Affected versions of this package are vulnerable to Information Exposure in the handling of sensitive data within the application. An attacker can gain unauthorized access to confidential information by exploiting improper management of data exposure.