Uncontrolled Resource Consumption vulnerability in hexpm hexpm/hexpm allows Excessive Allocation. Publishing an oversized package can cause Hex.pm to run out of memory while extracting the uploaded package tarball. This can terminate the affected application instance and result in a denial of service for package publishing and potentially other package-processing functionality.

This issue affects hexpm: before 495f01607d3eae4aed7ad09b2f54f31ec7a7df01; hex.pm: before 2026-03-10.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

* Prevent large package uploads by enforcing upload size limits at the reverse proxy or load balancer level.

History

Mon, 16 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 13 Mar 2026 16:30:00 +0000

Type Values Removed Values Added
Description Uncontrolled Resource Consumption vulnerability in hexpm hexpm/hexpm allows Excessive Allocation. Publishing an oversized package can cause Hex.pm to run out of memory while extracting the uploaded package tarball. This can terminate the affected application instance and result in a denial of service for package publishing and potentially other package-processing functionality. This issue affects hexpm: before 495f01607d3eae4aed7ad09b2f54f31ec7a7df01; hex.pm: before 2026-03-10.
Title Denial of Service via Oversized Package Upload
First Time appeared Hexpm
Hexpm hexpm
Weaknesses CWE-400
CPEs cpe:2.3:a:hexpm:hexpm:*:*:*:*:*:*:*:*
Vendors & Products Hexpm
Hexpm hexpm
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: EEF

Published:

Updated: 2026-03-17T04:00:18.548Z

Reserved: 2026-01-19T14:23:14.343Z

Link: CVE-2026-23940

cve-icon Vulnrichment

Updated: 2026-03-16T17:06:21.933Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-13T19:54:14.640

Modified: 2026-03-16T14:54:11.293

Link: CVE-2026-23940

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-16T09:25:02Z

Weaknesses