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Details of issue NIXPKGS-2026-2546

NIXPKGS-2026-2546
published 7 hours ago
KeePass 2.35 through 2.61.1 Memory Exhaustion via KDBX Header Field Size
Permalink CVE-2026-86776
4.6 MEDIUM
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Attack Requirement (AT): None (N)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Active (A)
  • Vulnerable System Impact Confidentiality (VC): None (N)
  • Vulnerable System Impact Integrity (VI): None (N)
  • Vulnerable System Impact Availability (VA): Low (L)
  • 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): None (N)
  • Modified User Interaction (MUI): Active (A)
  • Modified Vulnerable System Impact Confidentiality (MVC): None (N)
  • Modified Vulnerable System Impact Integrity (MVI): None (N)
  • Modified Vulnerable System Impact Availability (MVA): Low (L)
  • 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 18 hours ago
  • @LeSuisse ignored
    17 packages
    • keepassxc
    • keepass-diff
    • keepassxc-go
    • keepass-keepassrpc
    • keepass-qrcodeview
    • keepass-keepasshttp
    • keepass-keetraytotp
    • keepass-charactercopy
    • git-credential-keepassxc
    • perlPackages.FileKeePass
    • perl5Packages.FileKeePass
    • python313Packages.pykeepass
    • python314Packages.pykeepass
    • python313Packages.libkeepass
    • python314Packages.libkeepass
    • python313Packages.bundlewrap-keepass
    • python314Packages.bundlewrap-keepass
    7 hours ago
  • @LeSuisse accepted 7 hours ago
  • @LeSuisse published on GitHub 7 hours ago
KeePass 2.35 through 2.61.1 Memory Exhaustion via KDBX Header Field Size

KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function. Attackers can craft a malicious KDBX file declaring excessive header field lengths to trigger allocation of gigabytes of memory, causing the application to consume resources and terminate.

Affected products

KeePass
  • =<2.61.1

Matching in nixpkgs

pkgs.keepass

GUI password manager with strong cryptography

  • nixos-unstable 2.60
    • nixpkgs-unstable 2.60
    • nixos-unstable-small 2.61.1
  • nixos-26.05 2.60
    • nixos-26.05-small 2.60
    • nixpkgs-26.05-darwin 2.60
Ignored packages (17)

pkgs.keepassxc-go

Library and basic CLI tool to interact with KeepassXC via unix socket

Package maintainers