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CVE-2026-23940

MEDIUM

6.5

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.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/13/2026

Last Modified4/6/2026

Sourcenvd

Honeypot Sightings0

Affected Products

hex:hexpm

Weaknesses (CWE)

CWE-400

References

https://cna.erlef.org/cves/CVE-2026-23940.html(6b3ad84c-e1a6-4bf7-a703-f496b71e49db)

https://github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01(6b3ad84c-e1a6-4bf7-a703-f496b71e49db)

https://github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcr(6b3ad84c-e1a6-4bf7-a703-f496b71e49db)

https://osv.dev/vulnerability/EEF-CVE-2026-23940(6b3ad84c-e1a6-4bf7-a703-f496b71e49db)

IOC Correlations

No correlations recorded

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