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Vulnerability DatabaseCVE-2026-0884

CVE-2026-0884: 
NixOS vulnerability analysis and mitigation

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

Source: NVD

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-2370HIGH8.8
  • GitLabGitLab
  • gitlab
NoYesMar 30, 2026
CVE-2026-33206HIGH8.2
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  • calibre
NoYesMar 27, 2026
CVE-2026-33868MEDIUM6.1
  • NixOSNixOS
  • mastodon
NoYesMar 27, 2026
CVE-2026-33869MEDIUM4.8
  • NixOSNixOS
  • cpe:2.3:a:joinmastodon:mastodon
NoYesMar 27, 2026
CVE-2026-33205MEDIUM4.8
  • NixOSNixOS
  • cpe:2.3:a:calibre-ebook:calibre
NoYesMar 27, 2026

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