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CVE-2026-59849

🗓️ 21 Jul 2026 15:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 11 Views

Libssh flaw causes client loops during automatic certificate-based authentication when certificates are missing or rejected by a server, leading to denial of service.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-59849
21 Jul 202614:08
attackerkb
alpinelinux
AlpineLinux
CVE-2026-59849
21 Jul 202614:08
alpinelinux
cgr
Chainguard
CVE-2026-59849 vulnerabilities
12 Aug 202620:24
cgr
cve
CVE
CVE-2026-59849
21 Jul 202614:08
cve
cvelist
Cvelist
CVE-2026-59849 Libssh: libssh: denial of service via automatic certificate authentication loop
21 Jul 202614:08
cvelist
debian
Debian
[SECURITY] [DSA 6410-1] libssh security update
2 Aug 202607:37
debian
debiancve
Debian CVE
CVE-2026-59849
21 Jul 202614:08
debiancve
nessus
Tenable Nessus
Debian dsa-6410 : libssh-4 - security update
2 Aug 202600:00
nessus
nessus
Tenable Nessus
Fedora 43 : libssh (2026-063caa9112)
23 Jul 202600:00
nessus
nessus
Tenable Nessus
Fedora 44 : libssh (2026-0e46c91ccf)
23 Jul 202600:00
nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu16.04alllibssh0libssh_0_all.deb
Ubuntu18.04alllibssh0libssh_0_all.deb
Ubuntu20.04alllibssh0libssh_0_all.deb
Ubuntu22.04alllibssh0libssh_0_all.deb
Ubuntu24.04alllibssh0libssh_0_all.deb
Ubuntu26.04alllibssh0libssh_0_all.deb

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06 Aug 2026 19:58Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.13.1 - 7.5
EPSS0.00236
SSVC
11