CVE-2026-23940

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-23940
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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://cna.erlef.org/cves/CVE-2026-23940.html
https://github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01 Patch
https://github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcr Mitigation Vendor Advisory
https://osv.dev/vulnerability/EEF-CVE-2026-23940
Configurations

Configuration 1 (hide)

cpe:2.3:a:hex:hexpm:*:*:*:*:*:*:*:*
History

06 Apr 2026, 17:17

Type Values Removed Values Added
References
  • () https://cna.erlef.org/cves/CVE-2026-23940.html -
  • () https://osv.dev/vulnerability/EEF-CVE-2026-23940 -

20 Mar 2026, 19:17

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5
First Time Hex
Hex hexpm
CPE cpe:2.3:a:hex:hexpm:*:*:*:*:*:*:*:*
Summary
  • (es) Una vulnerabilidad de consumo de recursos no controlado en hexpm hexpm/hexpm permite una asignación excesiva. Publicar un paquete sobredimensionado puede hacer que Hex.pm se quede sin memoria mientras extrae el tarball del paquete subido. Esto puede terminar la instancia de aplicación afectada y resultar en una denegación de servicio para la publicación de paquetes y potencialmente otras funcionalidades de procesamiento de paquetes. Este problema afecta a hexpm: antes de 495f01607d3eae4aed7ad09b2f54f31ec7a7df01; hex.pm: antes del 2026-03-10.
References () https://github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01 - () https://github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01 - Patch
References () https://github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcr - () https://github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcr - Mitigation, Vendor Advisory

13 Mar 2026, 19:54

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-13 19:54

Updated : 2026-04-06 17:17

NVD link : CVE-2026-23940

Mitre link : CVE-2026-23940

CVE.ORG link : CVE-2026-23940

JSON object : View

Products Affected

hex

  • hexpm
CWE
CWE-400

Uncontrolled Resource Consumption