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CVE-2026-56390

🗓️ 29 Jul 2026 11:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 5 Views

GNU Bison arbitrary file overwrite via grammar %output and %header path directives.

Related
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Refs
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attackerkb
ATTACKERKB
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29 Jul 202609:40
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CVE-2026-56390
29 Jul 202609:40
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CVE-2026-56390
29 Jul 202612:15
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CVE-2026-56390
29 Jul 202609:40
cve
cvelist
Cvelist
CVE-2026-56390 Arbitrary Output Location Change in GNU Bison
29 Jul 202609:40
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debiancve
Debian CVE
CVE-2026-56390
29 Jul 202609:40
debiancve
euvd
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EUVD-2026-50277
29 Jul 202609:40
euvd
mscve
Microsoft CVE
Arbitrary Output Location Change in GNU Bison
7 Aug 202607:30
mscve
nvd
NVD
CVE-2026-56390
29 Jul 202611:16
nvd
osv
OSV
DEBIAN-CVE-2026-56390
29 Jul 202611:16
osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu16.04allbison0bison_0_all.deb
Ubuntu18.04allbison0bison_0_all.deb
Ubuntu20.04allbison0bison_0_all.deb
Ubuntu22.04allbison0bison_0_all.deb
Ubuntu24.04allbison0bison_0_all.deb
Ubuntu26.04allbison0bison_0_all.deb

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07 Aug 2026 17:32Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.3
CVSS 44.6
EPSS0.00133
SSVC
5