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Details of issue NIXPKGS-2026-2096

NIXPKGS-2026-2096
published 2 weeks, 6 days ago
openssh: security issues < 10.4
Permalink CVE-2026-59999
5.9 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): None (N)
  • Integrity (I): High (H)
  • 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): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): None (N)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to …

In sshd in OpenSSH before 10.4, DisableForwarding=yes was supposed to take precedence over PermitTunnel=yes, but did not.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-60002
7.7 HIGH
  • 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): High (H)
  • Integrity (I): High (H)
  • Availability (A): Low (L)
  • 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): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): Low (L)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
ssh in OpenSSH before 10.4 can have a use-after-free when …

ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re-exchange. (This outcome occurs only on the client side.)

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-59995
4.2 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
sftp in OpenSSH before 10.4 does not properly constrain the …

sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-59996
4.2 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
scp in OpenSSH before 10.4 may place a file in …

scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs between two remote destinations.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-60001
6.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
    • openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
sshd in OpenSSH before 10.4 does not always honor the …

sshd in OpenSSH before 10.4 does not always honor the minimum authentication delay.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-60000
3.7 LOW
  • 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): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • 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): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): Low (L)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • lxqt.lxqt-openssh-askpass
    • perl5Packages.NetOpenSSH
    • perlPackages.NetOpenSSH
    • openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
sshd in OpenSSH before 10.4 allows remote attackers to cause …

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthentication.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-59997
4.2 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • 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): Required (R)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): None (N)
updated 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • lxqt.lxqt-openssh-askpass
    • perl5Packages.NetOpenSSH
    • perlPackages.NetOpenSSH
    • opensshTest
    • openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
internal-sftp in sshd in OpenSSH before 10.4 recognizes only the …

internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an SFTP connection.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers

Permalink CVE-2026-59998
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 2 weeks, 6 days ago by @LeSuisse Activity log
  • Created suggestion 2 weeks, 6 days ago
  • @LeSuisse ignored
    5 packages
    • opensshTest
    • openssh-askpass
    • perlPackages.NetOpenSSH
    • perl5Packages.NetOpenSSH
    • lxqt.lxqt-openssh-askpass
    2 weeks, 6 days ago
  • @LeSuisse accepted 2 weeks, 6 days ago
  • @LeSuisse published on GitHub 2 weeks, 6 days ago
sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: …

sshd in OpenSSH before 10.4 has an undocumented security-relevant behavior: GSSAPIStrictAcceptorCheck has no value if the server is in Windows Active Directory.

Affected products

OpenSSH
  • <10.4

Matching in nixpkgs

pkgs.openssh_hpn

Implementation of the SSH protocol with high performance networking patches

Ignored packages (5)

Package maintainers