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CVE-2026-1979

🗓️ 07 Feb 2026 07:22:39Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 2 Views

Mruby up to 3.4.0 has a use-after-free in mrb_vm_exec from a conditional jump optimization; local exploit; patch available.

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Refs
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CVE-2026-1979
6 Feb 202604:32
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mruby 资源管理错误漏洞
6 Feb 202600:00
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CVE-2026-1979 mruby JMPNOT-to-JMPIF Optimization vm.c mrb_vm_exec use after free
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CVE-2026-1979
6 Feb 202604:32
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6 Feb 202604:32
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CVE-2026-1979
6 Feb 202605:16
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6 Feb 202605:16
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UBUNTU-CVE-2026-1979
6 Feb 202605:16
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Positive Technologies
PT-2026-6673
6 Feb 202600:00
ptsecurity
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07 Feb 2026 07:22Current
5Medium risk
Vulners AI Score5
CVSS 3.15.3 - 5.5
CVSS 24.3
CVSS 44.8
CVSS 35.3
EPSS0.00027
SSVC
2