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Details of issue NIXPKGS-2026-0203

NIXPKGS-2026-0203
published 5 months, 3 weeks ago
Permalink CVE-2026-25478
7.4 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Changed (C)
  • Confidentiality (C): High (H)
  • Integrity (I): None (N)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
updated 5 months, 3 weeks ago by @LeSuisse Activity log
  • Created suggestion 5 months, 3 weeks ago
  • @LeSuisse ignored
    3 packages
    • python312Packages.litestar-htmx
    • python313Packages.litestar-htmx
    • python314Packages.litestar-htmx
    5 months, 3 weeks ago
  • @LeSuisse accepted 5 months, 3 weeks ago
  • @LeSuisse published on GitHub 5 months, 3 weeks ago
Litestar has a CORS origin allowlist bypass due to unescaped regex metacharacters in allowed origins

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, CORSConfig.allowed_origins_regex is constructed using a regex built from configured allowlist values and used with fullmatch() for validation. Because metacharacters are not escaped, a malicious origin can match unexpectedly. The check relies on allowed_origins_regex.fullmatch(origin). This vulnerability is fixed in 2.20.0.

Affected products

litestar
  • ==< 2.20.0

Matching in nixpkgs

pkgs.litestar

Production-ready, Light, Flexible and Extensible ASGI API framework

Ignored packages (3)

Package maintainers

Upstream advisory: https://github.com/litestar-org/litestar/security/advisories/GHSA-2p2x-hpg8-cqp2
Upstream patch: https://github.com/litestar-org/litestar/commit/eb87703b309efcc0d1b087dcb12784e76b003d5a