CVE-2026-6770: Other issue in the Storage: IndexedDB component
Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 140.10 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150 - Upgrade
Upgrade
Mozilla Firefoxto a version that resolves this vulnerability.Fixed in 150 - Upgrade
Upgrade
Mozilla Firefox ESRto a version that resolves this vulnerability.Fixed in 140.10 - Upgrade
Upgrade
Mozilla Thunderbirdto a version that resolves this vulnerability.Fixed in 150 - Upgrade
Upgrade
Mozilla Thunderbird ESRto a version that resolves this vulnerability.Fixed in 140.10
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-6746
- CVE-2026-6747
- CVE-2026-6748
- CVE-2026-6749
- CVE-2026-6750
- CVE-2026-6751
- CVE-2026-6752
- CVE-2026-6753
- CVE-2026-6754
- CVE-2026-6757
- CVE-2026-6759
- CVE-2026-6761
- CVE-2026-6762
- CVE-2026-6763
- CVE-2026-6764
- CVE-2026-6765
- CVE-2026-6766
- CVE-2026-6767
- CVE-2026-6769
- CVE-2026-6770
- CVE-2026-6771
- CVE-2026-6772
- CVE-2026-6776
- CVE-2026-6785
- CVE-2026-6786
- CVE-2026-6755
- CVE-2026-6758
- CVE-2026-6760
- CVE-2026-6768
- CVE-2026-6773
- CVE-2026-6774
- CVE-2026-6775
- CVE-2026-6777
- CVE-2026-6778
- CVE-2026-6779
- CVE-2026-6780
- CVE-2026-6781
- CVE-2026-6782
- CVE-2026-6783
- CVE-2026-7321
- CVE-2026-8091
- CVE-2026-6784
- CVE-2026-6756
Frequently Asked Questions
What is the severity of CVE-2026-6770?
CVE-2026-6770 is classified as a vulnerability in the Storage: IndexedDB component.
How do I fix CVE-2026-6770?
To fix CVE-2026-6770, update to Firefox version 150, Firefox ESR 140.10, or Thunderbird version 150 and 140.10.
Which versions are affected by CVE-2026-6770?
CVE-2026-6770 affects Mozilla Firefox versions prior to 150 and Thunderbird versions prior to 150 and 140.10.
Is there a patch available for CVE-2026-6770?
Yes, the vulnerability is patched in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
How does CVE-2026-6770 impact users?
CVE-2026-6770 can potentially expose users to security risks related to the Storage: IndexedDB component.