PT-2026-3443 · Hexpm · Hex.Pm+1

Jzakharia1 · Published 2026-01-19 · Updated 2026-01-19 · CVE-2026-21618

Positive Technologies (AI Summary)

CVSS v4.0

8.5

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N

Name of the Vulnerable Software and Affected Versions hexpm versions 617e44c71f1dd9043870205f371d375c5c4d886d through c692438684ead90c3bcbfb9ccf4e63c768c668a8 hex.pm versions prior to 2026-01-19

Description An issue exists in hexpm related to improper neutralization of input during web page generation, leading to a Cross-Site Scripting (XSS) condition. The issue is present in the 'Elixir.HexpmWeb.SharedAuthorizationView' modules, specifically within the render grouped scopes/3 routine and the 'lib/hexpm web/views/shared authorization view.ex' file. The vulnerability allows for the execution of malicious scripts through crafted input.

Recommendations Update hexpm from version 617e44c71f1dd9043870205f371d375c5c4d886d to version c692438684ead90c3bcbfb9ccf4e63c768c668a8. Update hex.pm to a version after 2026-01-19.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-21618

GHSA-6CW9-5GG4-RHPJ

Affected Products

Hex.Pm

Hexpm

References · 7

• https://github.com/hexpm/hexpm/security/advisories/GHSA-6cw9-5gg4-rhpj · Vendor Advisory
• https://github.com/hexpm/hexpm/commit/c692438684ead90c3bcbfb9ccf4e63c768c668a8 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-21618 · Security Note
• https://osv.dev/vulnerability/EEF-CVE-2026-21618 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-21618 · Vendor Advisory
• https://twitter.com/CVEnew/status/2013270793283596399 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2013280785499922572 · Twitter Post