CVE-2026-12308

LLM-synthesized narrative grounded in this CVE's description and references.

• Mozilla Corporation/Firefoxllm-fuzzy

  Range: = 152
• Mozilla Corporation/Thunderbirdllm-fuzzy

  Range: = 152
• osv-coords22 versions

  pkg:apk/chainguard/firefoxpkg:apk/chainguard/firefox-esrpkg:apk/wolfi/firefoxpkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP7pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5

  < 140.12-r0+ 21 more

  • (no CPE)range: < 140.12-r0
  • (no CPE)range: < 140.12-r0
  • (no CPE)range: < 140.12-r0
  • (no CPE)range: < 140.12.0-1.el8_10.alma.1
  • (no CPE)range: < 140.12.0-1.el9_8.alma.1
  • (no CPE)range: < 140.12.0-1.el9_8.alma.1
  • (no CPE)range: < 140.12.0-1.1
  • (no CPE)range: < 152.0-1.1
  • (no CPE)range: < 140.12.0-1.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-112.321.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-150200.152.242.1
  • (no CPE)range: < 140.12.0-112.321.1

• bugzilla.mozilla.org/show_bug.cginvd
• www.mozilla.org/security/advisories/mfsa2026-57/nvd
• www.mozilla.org/security/advisories/mfsa2026-58/nvd
• www.mozilla.org/security/advisories/mfsa2026-60/nvd
• www.mozilla.org/security/advisories/mfsa2026-61/nvd

• Mozilla Patches 25 CVEs in Firefox and Thunderbird, Including Two Critical DOM Security Bypasses
  Vypr Intelligence · Jun 16, 2026
• Thunderbird: 25 CVEs Disclosed in Single Advisory, Two Critical DOM Bypasses
  Vypr Intelligence · Jun 16, 2026