CVE-2026-21618

MediumCVSS 6.1

Published: 19/01/2026(UTC)Updated: 24/07/2026(UTC)Translated: 25/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

12th percentile - higher than 12% of all known CVEs

Summary

hexpm (hex.pm) has a Cross-Site Scripting (XSS) vulnerability in the Elixir.HexpmWeb.SharedAuthorizationView module. The render_grouped_scopes/3 function does not sanitize input, allowing script injection.

Risk Assessment

An attacker can inject malicious script that executes in the victim's browser, leading to session or data theft.

Recommendation

Update hexpm to a version containing the fix (commit c692438684ead90c3bcbfb9ccf4e63c768c668a8 or later).

Original NVD description (English source)

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in hexpm hexpm/hexpm ('Elixir.HexpmWeb.SharedAuthorizationView' modules) allows Cross-Site Scripting (XSS). This vulnerability is associated with program files lib/hexpm_web/views/shared_authorization_view.ex and program routines 'Elixir.HexpmWeb.SharedAuthorizationView':render_grouped_scopes/3. This issue affects hexpm: from 617e44c71f1dd9043870205f371d375c5c4d886d before c692438684ead90c3bcbfb9ccf4e63c768c668a8; hex.pm: from 2025-10-01 before 2026-01-19.