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CVE search · CVE-2026-59851

CVE-2026-59851

high 8.8

A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the authenticated Kerberos principal is authorized for the requested local user, allowing authenticated clients to log in as arbitrary users.

Open in the NVD CVE.org JSON

Details

Status
Analyzed
Published
Last changed
Source
secalert@redhat.com
Weakness
CWE-863

Severity

VersionScoreVectorSource
CVSS 3.1 high 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H secalert@redhat.comSecondary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

  • libssh · libssh
  • redhat · hardened_images
  • redhat · enterprise_linux
  • redhat · enterprise_linux_eus
  • redhat · enterprise_linux_for_els
  • redhat · enterprise_linux_for_ibm_z_systems
  • redhat · enterprise_linux_for_ibm_z_systems_els
  • redhat · enterprise_linux_for_ibm_z_systems_eus
  • redhat · enterprise_linux_for_power_little_endian
  • redhat · enterprise_linux_for_power_little_endian_els
  • redhat · enterprise_linux_for_power_little_endian_eus

References