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CVE-2026-55655

🗓️ 23 Jun 2026 04:17:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 3 Views

OpenSSH X window forwarding can be hijacked on Linux by a local attacker via pre binding the X socket, exposing forwarded traffic.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-55655
23 Jun 202603:36
attackerkb
Circl
CVE-2026-55655
23 Jun 202608:01
circl
CVE
CVE-2026-55655
23 Jun 202603:36
cve
Cvelist
CVE-2026-55655 Openssh: local mitm of x11 forwarding via abstract unix socket pre-binding in red hat enterprise linux openssh client versions
23 Jun 202603:36
cvelist
Debian CVE
CVE-2026-55655
23 Jun 202603:36
debiancve
EUVD
EUVD-2026-38413
23 Jun 202603:36
euvd
Fedora
[SECURITY] Fedora 44 Update: openssh-10.2p1-12.fc44
9 Jul 202600:57
fedora
Fedora
[SECURITY] Fedora 43 Update: openssh-10.0p1-10.fc43
11 Jul 202600:55
fedora
Tenable Nessus
Fedora 43 : openssh (2026-95b955a09b)
11 Jul 202600:00
nessus
Tenable Nessus
Fedora 44 : openssh (2026-a80275b42d)
9 Jul 202600:00
nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu22.04allopenssh0openssh_0_all.deb
Ubuntu24.04allopenssh0openssh_0_all.deb
Ubuntu18.04allopenssh0openssh_0_all.deb
Ubuntu20.04allopenssh0openssh_0_all.deb
Ubuntu26.04allopenssh0openssh_0_all.deb
Ubuntu14.04allopenssh0openssh_0_all.deb
Ubuntu16.04allopenssh0openssh_0_all.deb

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29 Jun 2026 21:14Current
6Medium risk
Vulners AI Score6
CVSS 3.15 - 6.1
EPSS0.0009
SSVC
3