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Details of issue NIXPKGS-2026-2409

NIXPKGS-2026-2409
published 1 month ago
openssh: security issues < 10.5
Permalink CVE-2026-73283
2.5 LOW
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
updated 1 month ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    6 packages
    • opensshTest
    • openssh-askpass
    • openssh_hpnWithKerberos
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
  • @LeSuisse restored package openssh_hpnWithKerberos
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
In sshd in OpenSSH before 10.5, the restrict keyword (in …

In sshd in OpenSSH before 10.5, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not.

Affected products

OpenSSH
  • <10.5

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-73282
4.8 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): Low (L)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
updated 1 month ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
In ssh in OpenSSH before 10.5, a use-after-free for realloc …

In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote-forwarding operations are concurrent.

Affected products

OpenSSH
  • <10.5

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-73281
3.5 LOW
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
updated 1 month ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
In ssh-agent in OpenSSH before 10.5, some operations can occur …

In ssh-agent in OpenSSH before 10.5, some operations can occur remotely but were intended to occur only locally, including operations that add tokens or use keys. This is caused by misinteraction between agent locking and the session-bind@openssh.com extension.

Affected products

OpenSSH
  • <10.5

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers