Nixpkgs security tracker

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Permalink CVE-2026-82449

6.9 MEDIUM

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): Low (L)
Vulnerable System Impact Integrity (VI): None (N)
Vulnerable System Impact Availability (VA): None (N)
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): None (N)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): None (N)
Modified Vulnerable System Impact Confidentiality (MVC): Low (L)
Modified Vulnerable System Impact Integrity (MVI): None (N)
Modified Vulnerable System Impact Availability (MVA): None (N)
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)

created 2 hours ago Activity log

Created suggestion 2 hours ago

Cockpit CMS before 2.14.1 Account Enumeration via Auth Timing

Cockpit CMS before 2.14.1 contains an account enumeration vulnerability in the auth check endpoint due to timing discrepancies in password verification. Attackers can measure response times across multiple requests to determine which accounts exist by observing that existing accounts trigger bcrypt verification while non-existent accounts return immediately.

References

Patch Commit patch
https://github.com/Cockpit-HQ/Cockpit product
Vulnerable code: Auth.php (password_verify only on the match path) technical-description
Reporter's write-up (MFC-2026-001) third-party-advisory
VulnCheck Advisory: Cockpit CMS before 2.14.1 Account Enumeration via Auth Timing third-party-advisory

Affected products

cockpit

==2.14.1
<2.14.1

Matching in nixpkgs

pkgs.cockpit

Web-based graphical interface for servers

nixos-unstable 363.1
- nixpkgs-unstable 364
- nixos-unstable-small 366
nixos-26.05 362
- nixos-26.05-small 362
- nixpkgs-26.05-darwin 362

pkgs.cockpit-zfs

Cockpit plugin for ZFS management by 45Drives

nixos-unstable 1.2.27-3
- nixpkgs-unstable 1.2.27-3
- nixos-unstable-small 1.3.0
nixos-26.05 1.2.27-3
- nixos-26.05-small 1.2.27-3
- nixpkgs-26.05-darwin 1.2.27-3