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Permalink CVE-2026-47783
8.1 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): High (H)
  • 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): High (H)
updated 2 days, 13 hours ago by @LeSuisse Activity log
  • Created suggestion 2 days, 18 hours ago
  • @LeSuisse ignored
    20 packages
    • libmemcached
    • memcachedTestHook
    • memcached-exporter
    • phpExtensions.memcached
    • php82Extensions.memcached
    • php83Extensions.memcached
    • php84Extensions.memcached
    • php85Extensions.memcached
    • perlPackages.CacheMemcached
    • perl5Packages.CacheMemcached
    • perl538Packages.CacheMemcached
    • perl540Packages.CacheMemcached
    • perlPackages.CacheMemcachedFast
    • perl5Packages.CacheMemcachedFast
    • perl538Packages.CacheMemcachedFast
    • perl540Packages.CacheMemcachedFast
    • python312Packages.python-memcached
    • python313Packages.python-memcached
    • python314Packages.python-memcached
    • chickenPackages_5.chickenEggs.memcached
    2 days, 13 hours ago
  • @LeSuisse ignored maintainer @coreyoconnor 2 days, 13 hours ago maintainer.ignore
  • @LeSuisse accepted 2 days, 13 hours ago
  • @LeSuisse published on GitHub 2 days, 13 hours ago
In memcached before 1.6.42, username data for SASL password database …

In memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because a loop exits as soon as a valid username is found by sasl_server_userdb_checkpass.

Affected products

memcached
  • <1.6.42

Matching in nixpkgs

Ignored packages (20)

pkgs.memcachedTestHook

None

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small
  • nixos-25.11 -
    • nixos-25.11-small
    • nixpkgs-25.11-darwin

Package maintainers

Ignored maintainers (1)