CVE-2026-100798: Vulnerability in Mozilla Firefox
Cryptography misuse in Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
AI Analysis
Technical Summary
This vulnerability involves cryptography misuse within the Storage: Quota Manager component of Mozilla Firefox. It was identified and fixed in Firefox ESR 153.4 and Firefox 157. The Mozilla advisory categorizes the impact as high. The advisory is part of a broader security update addressing multiple high-impact vulnerabilities across Firefox components.
Potential Impact
The vulnerability has a high impact rating as per Mozilla's advisory. It affects the cryptographic operations in the Storage: Quota Manager component, potentially compromising security related to storage quota management. No active exploitation in the wild has been reported.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox ESR 153.4 and Firefox 157. Users and administrators should update to these versions or later to mitigate the risk. There is no indication that additional mitigation steps are required beyond applying the official update.
CVE-2026-100798: Vulnerability in Mozilla Firefox
Description
Cryptography misuse in Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
Affected software
Mozilla
Firefox
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves cryptography misuse within the Storage: Quota Manager component of Mozilla Firefox. It was identified and fixed in Firefox ESR 153.4 and Firefox 157. The Mozilla advisory categorizes the impact as high. The advisory is part of a broader security update addressing multiple high-impact vulnerabilities across Firefox components.
Potential Impact
The vulnerability has a high impact rating as per Mozilla's advisory. It affects the cryptographic operations in the Storage: Quota Manager component, potentially compromising security related to storage quota management. No active exploitation in the wild has been reported.
Mitigation Recommendations
Mozilla has released an official fix for this vulnerability in Firefox ESR 153.4 and Firefox 157. Users and administrators should update to these versions or later to mitigate the risk. There is no indication that additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-26T19:17:38.515Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-100/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-97/","vendor":"Mozilla"}]
Threat ID: 6abbb3f3f7a7c5410664099e
Added to database: 09/29/2026, 12:49:55 UTC
Last enriched: 09/29/2026, 13:18:09 UTC
Last updated: 09/29/2026, 18:20:13 UTC
Views: 6
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