Medium 6.9Published Feb 26, 2026

CVE-2026-23939Path Traversal in Local File Store Backend

Updated under an hour ago (Oct 26, 2026, 8:50 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for hexpm

Exploited in the last 30 days

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

CVSS: 6.9 MEDIUM (v4.0, CNA)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
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: EEF
NVD analysis: Modified
Record last updated: Sep 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

hexpm hexpm hexpm:hexpm	931ee0ed46fa89218e0400a4f6e6d15f96406050 builds before 5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0	CNA record
hex hexpm hex:hexpm	from 2014-09-29 before 2026-02-26	NVD

References

https://github.com/hexpm/hexpm/security/advisories/GHSA-42mv-r64p-4869vendor-advisory, related, mitigation
https://cna.erlef.org/cves/CVE-2026-23939.htmlrelated
https://osv.dev/vulnerability/EEF-CVE-2026-23939related
https://github.com/hexpm/hexpm/commit/5d2ccd2f14f45a63225a73fb5b1c937baf36fdc0patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.