View at Official alpine advisory, NVD, CVE.org · CVE detail
Freshness: no update timestamp found; verify against the upstream OS advisory manually.
CVE-2026-0891: 3 source package rows (firefox, firefox-esr, thunderbird); 274 state rows across 2 repos (3.23-community, edge-community); fixed 0, open 274.
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.