CVE-2026-23940

EUVD-2026-12050
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 hex.pm: before 2026-03-10.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 37.09%
Affected Products (NVD)
VendorProductVersion
hexhexpm
𝑥
< 2026-03-09
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://cna.erlef.org/cves/CVE-2026-23940.html
https://github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01
https://github.com/hexpm/hexpm/commit/82911daf5f8fb2ab44f298e3ba22b90bc1ae3746
https://github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcr
https://osv.dev/vulnerability/EEF-CVE-2026-23940