CVE-2026-23939

Severity CVSS v4.0:

MEDIUM

Type:

CWE-22 Path Traversal

Publication date:

26/02/2026

Last modified:

06/04/2026

Description

Improper Limitation of a Pathname to a Restricted Directory (&#39;Path Traversal&#39;) vulnerability in hexpm hexpm/hexpm (&#39;Elixir.Hexpm.Store.Local&#39; module) allows Relative Path Traversal. This vulnerability is associated with program files lib/hexpm/store/local.ex and program routines &#39;Elixir.Hexpm.Store.Local&#39;:get/3, &#39;Elixir.Hexpm.Store.Local&#39;:put/4, &#39;Elixir.Hexpm.Store.Local&#39;:delete/2, &#39;Elixir.Hexpm.Store.Local&#39;:delete_many/2.<br /> <br /> This issue does NOT affect hex.pm the service. Only self-hosted deployments using the Local Storage backend are affected.<br /> <br /> This issue affects hexpm: from 931ee0ed46fa89218e0400a4f6e6d15f96406050 before 5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0.

Impact

Vector 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): Low
Integrity (VI): None
Availability (VA): None
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0

6.90

Severity 4.0

MEDIUM

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None