NIXPKGS-2026-2535

GitHub issue published 7 hours ago

openvpn: security issues < 2.6.22

Permalink CVE-2026-84256

7.7 HIGH

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): Present (P)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): High (H)
Vulnerable System Impact Integrity (VI): High (H)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): Present (P)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): High (H)
Modified Vulnerable System Impact Integrity (MVI): High (H)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 7 hours ago by @LeSuisse Activity log

Created suggestion 10 hours ago
@LeSuisse ignored
7 packages
- openvpn3
- openvpn-auth-ldap
- namespaced-openvpn
- openvpn_learnaddress
- networkmanager-openvpn
- nagiosPlugins.check_openvpn
- gnomeExtensions.openvpn3-indicator
7 hours ago
@LeSuisse accepted 7 hours ago
@LeSuisse published on GitHub 7 hours ago

An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and …

An argument parsing issue in OpenVPN 2.1_rc10 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows remote authenticated users to execute arbitrary commands via a crafted certificate subject

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-84256 vendor-advisory

Affected products

OpenVPN

=<2.6.22
=<2.7.6

Matching in nixpkgs

pkgs.openvpn

Robust and highly flexible tunneling application

nixos-unstable 2.6.19
- nixpkgs-unstable 2.6.19
- nixos-unstable-small 2.6.21
nixos-26.05 2.6.19
- nixos-26.05-small 2.6.21
- nixpkgs-26.05-darwin 2.6.19

Ignored packages (7)

pkgs.openvpn3

OpenVPN 3 Linux client

nixos-unstable 27
- nixpkgs-unstable 27
- nixos-unstable-small 27.1
nixos-26.05 27
- nixos-26.05-small 27.1
- nixpkgs-26.05-darwin 27

pkgs.openvpn-auth-ldap

LDAP authentication plugin for OpenVPN

nixos-unstable 2.0.4
- nixpkgs-unstable 2.0.4
- nixos-unstable-small 2.0.4
nixos-26.05 2.0.4
- nixos-26.05-small 2.0.4
- nixpkgs-26.05-darwin 2.0.4

pkgs.namespaced-openvpn

Network namespace isolation for OpenVPN tunnels

nixos-unstable 0.6.0
- nixpkgs-unstable 0.6.0
- nixos-unstable-small 0.6.0
nixos-26.05 0.6.0
- nixos-26.05-small 0.6.0
- nixpkgs-26.05-darwin 0.6.0

pkgs.openvpn_learnaddress

Openvpn learn-address script to manage a hosts-like file

nixos-unstable 2013-10-21
- nixpkgs-unstable 2013-10-21
- nixos-unstable-small 2013-10-21
nixos-26.05 2013-10-21
- nixos-26.05-small 2013-10-21
- nixpkgs-26.05-darwin 2013-10-21

pkgs.networkmanager-openvpn

NetworkManager's OpenVPN plugin

nixos-unstable 1.12.3
- nixpkgs-unstable 1.12.3
- nixos-unstable-small 1.12.5
nixos-26.05 1.12.3
- nixos-26.05-small 1.12.3
- nixpkgs-26.05-darwin 1.12.3

pkgs.nagiosPlugins.check_openvpn

Nagios/icinga/sensu check plugin for OpenVPN

nixos-unstable 0.0.1
- nixpkgs-unstable 0.0.1
- nixos-unstable-small 0.0.1
nixos-26.05 0.0.1
- nixos-26.05-small 0.0.1
- nixpkgs-26.05-darwin 0.0.1

pkgs.gnomeExtensions.openvpn3-indicator

Control OpenVPN3 sessions and configs.

nixos-unstable -
- nixos-unstable-small 5

Package maintainers

@peterhoeg Peter Hoeg <peter@hoeg.com>

Permalink CVE-2026-84226

8.5 HIGH

CVSS version (CVSS): 4.0
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): High (H)
Vulnerable System Impact Integrity (VI): High (H)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): None (N)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): High (H)
Modified Vulnerable System Impact Integrity (MVI): High (H)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Negligible (N)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 7 hours ago by @LeSuisse Activity log

Created suggestion 10 hours ago
@LeSuisse ignored
7 packages
- openvpn3
- openvpn-auth-ldap
- namespaced-openvpn
- openvpn_learnaddress
- networkmanager-openvpn
- nagiosPlugins.check_openvpn
- gnomeExtensions.openvpn3-indicator
7 hours ago
@LeSuisse accepted 7 hours ago
@LeSuisse published on GitHub 7 hours ago

OpenVPN version 2.5.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on …

OpenVPN version 2.5.0 through 2.6.22 and 2.7_alpha1 through 2.7.6 on Windows allows local authenticated users to perform a binary planting attack during network configuration steps

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-84226 vendor-advisory

Affected products

OpenVPN

=<2.6.22
=<2.7.6

Matching in nixpkgs

pkgs.openvpn

Robust and highly flexible tunneling application

nixos-unstable 2.6.19
- nixpkgs-unstable 2.6.19
- nixos-unstable-small 2.6.21
nixos-26.05 2.6.19
- nixos-26.05-small 2.6.21
- nixpkgs-26.05-darwin 2.6.19

Ignored packages (7)

pkgs.openvpn3

OpenVPN 3 Linux client

nixos-unstable 27
- nixpkgs-unstable 27
- nixos-unstable-small 27.1
nixos-26.05 27
- nixos-26.05-small 27.1
- nixpkgs-26.05-darwin 27

pkgs.openvpn-auth-ldap

LDAP authentication plugin for OpenVPN

nixos-unstable 2.0.4
- nixpkgs-unstable 2.0.4
- nixos-unstable-small 2.0.4
nixos-26.05 2.0.4
- nixos-26.05-small 2.0.4
- nixpkgs-26.05-darwin 2.0.4

pkgs.namespaced-openvpn

Network namespace isolation for OpenVPN tunnels

nixos-unstable 0.6.0
- nixpkgs-unstable 0.6.0
- nixos-unstable-small 0.6.0
nixos-26.05 0.6.0
- nixos-26.05-small 0.6.0
- nixpkgs-26.05-darwin 0.6.0

pkgs.openvpn_learnaddress

Openvpn learn-address script to manage a hosts-like file

nixos-unstable 2013-10-21
- nixpkgs-unstable 2013-10-21
- nixos-unstable-small 2013-10-21
nixos-26.05 2013-10-21
- nixos-26.05-small 2013-10-21
- nixpkgs-26.05-darwin 2013-10-21

pkgs.networkmanager-openvpn

NetworkManager's OpenVPN plugin

nixos-unstable 1.12.3
- nixpkgs-unstable 1.12.3
- nixos-unstable-small 1.12.5
nixos-26.05 1.12.3
- nixos-26.05-small 1.12.3
- nixpkgs-26.05-darwin 1.12.3

pkgs.nagiosPlugins.check_openvpn

Nagios/icinga/sensu check plugin for OpenVPN

nixos-unstable 0.0.1
- nixpkgs-unstable 0.0.1
- nixos-unstable-small 0.0.1
nixos-26.05 0.0.1
- nixos-26.05-small 0.0.1
- nixpkgs-26.05-darwin 0.0.1

pkgs.gnomeExtensions.openvpn3-indicator

Control OpenVPN3 sessions and configs.

nixos-unstable -
- nixos-unstable-small 5

Package maintainers

@peterhoeg Peter Hoeg <peter@hoeg.com>

Permalink CVE-2026-84732

8.7 HIGH

CVSS version (CVSS): 4.0
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Attack Requirement (AT): None (N)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Vulnerable System Impact Confidentiality (VC): None (N)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): High (H)
Subsequent System Impact Confidentiality (SC): None (N)
Subsequent System Impact Integrity (SI): None (N)
Subsequent System Impact Availability (SA): Low (L)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Attack Requirement (MAT): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): None (N)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): High (H)
Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
Modified Subsequent System Impact Integrity (MSI): Negligible (N)
Modified Subsequent System Impact Availability (MSA): Low (L)
Safety (S): Not Defined (X)
Automatable (AU): Not Defined (X)
Recovery (R): Not Defined (X)
Value Density (V): Not Defined (X)
Vulnerability Response Effort (RE): Not Defined (X)
Provider Urgency (U): Not Defined (X)
Confidentiality Req. (CR): Not Defined (X)
Integrity Req. (IR): Not Defined (X)
Availability Req. (AR): Not Defined (X)
Exploit Maturity (E): Not Defined (X)

updated 7 hours ago by @LeSuisse Activity log

Created suggestion 10 hours ago
@LeSuisse ignored
7 packages
- openvpn3
- openvpn-auth-ldap
- namespaced-openvpn
- openvpn_learnaddress
- networkmanager-openvpn
- nagiosPlugins.check_openvpn
- gnomeExtensions.openvpn3-indicator
7 hours ago
@LeSuisse accepted 7 hours ago
@LeSuisse published on GitHub 7 hours ago

Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and …

Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-84732 vendor-advisory

Affected products

OpenVPN

=<2.6.22
=<2.7.6

Matching in nixpkgs

pkgs.openvpn

Robust and highly flexible tunneling application

nixos-unstable 2.6.19
- nixpkgs-unstable 2.6.19
- nixos-unstable-small 2.6.21
nixos-26.05 2.6.19
- nixos-26.05-small 2.6.21
- nixpkgs-26.05-darwin 2.6.19

Ignored packages (7)

pkgs.openvpn3

OpenVPN 3 Linux client

nixos-unstable 27
- nixpkgs-unstable 27
- nixos-unstable-small 27.1
nixos-26.05 27
- nixos-26.05-small 27.1
- nixpkgs-26.05-darwin 27

pkgs.openvpn-auth-ldap

LDAP authentication plugin for OpenVPN

nixos-unstable 2.0.4
- nixpkgs-unstable 2.0.4
- nixos-unstable-small 2.0.4
nixos-26.05 2.0.4
- nixos-26.05-small 2.0.4
- nixpkgs-26.05-darwin 2.0.4

pkgs.namespaced-openvpn

Network namespace isolation for OpenVPN tunnels

nixos-unstable 0.6.0
- nixpkgs-unstable 0.6.0
- nixos-unstable-small 0.6.0
nixos-26.05 0.6.0
- nixos-26.05-small 0.6.0
- nixpkgs-26.05-darwin 0.6.0

pkgs.openvpn_learnaddress

Openvpn learn-address script to manage a hosts-like file

nixos-unstable 2013-10-21
- nixpkgs-unstable 2013-10-21
- nixos-unstable-small 2013-10-21
nixos-26.05 2013-10-21
- nixos-26.05-small 2013-10-21
- nixpkgs-26.05-darwin 2013-10-21

pkgs.networkmanager-openvpn

NetworkManager's OpenVPN plugin

nixos-unstable 1.12.3
- nixpkgs-unstable 1.12.3
- nixos-unstable-small 1.12.5
nixos-26.05 1.12.3
- nixos-26.05-small 1.12.3
- nixpkgs-26.05-darwin 1.12.3

pkgs.nagiosPlugins.check_openvpn

Nagios/icinga/sensu check plugin for OpenVPN

nixos-unstable 0.0.1
- nixpkgs-unstable 0.0.1
- nixos-unstable-small 0.0.1
nixos-26.05 0.0.1
- nixos-26.05-small 0.0.1
- nixpkgs-26.05-darwin 0.0.1

pkgs.gnomeExtensions.openvpn3-indicator

Control OpenVPN3 sessions and configs.

nixos-unstable -
- nixos-unstable-small 5

Package maintainers

@peterhoeg Peter Hoeg <peter@hoeg.com>

Nixpkgs security tracker

Details of issue NIXPKGS-2026-2535

References

Affected products

Matching in nixpkgs

pkgs.openvpn

pkgs.openvpn3

pkgs.openvpn-auth-ldap

pkgs.namespaced-openvpn

pkgs.openvpn_learnaddress

pkgs.networkmanager-openvpn

pkgs.nagiosPlugins.check_openvpn

pkgs.gnomeExtensions.openvpn3-indicator

Package maintainers

References

Affected products

Matching in nixpkgs

pkgs.openvpn

pkgs.openvpn3

pkgs.openvpn-auth-ldap

pkgs.namespaced-openvpn

pkgs.openvpn_learnaddress

pkgs.networkmanager-openvpn

pkgs.nagiosPlugins.check_openvpn

pkgs.gnomeExtensions.openvpn3-indicator

Package maintainers

References

Affected products

Matching in nixpkgs

pkgs.openvpn

pkgs.openvpn3

pkgs.openvpn-auth-ldap

pkgs.namespaced-openvpn

pkgs.openvpn_learnaddress

pkgs.networkmanager-openvpn

pkgs.nagiosPlugins.check_openvpn

pkgs.gnomeExtensions.openvpn3-indicator

Package maintainers