Medium severity6.5NVD Advisory· Published Mar 13, 2026· Updated Apr 6, 2026

CVE-2026-23940

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.

Affected products

Hex/Hexpm
cpe:2.3:a:hex:hexpm:*:*:*:*:*:*:*:*
Range: <2026-03-09

Patches

495f01607d3e

https://github.com/hexpm/hexpmvia nvd-ref

commit

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01nvdPatch
github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcrnvdMitigationVendor Advisory
cna.erlef.org/cves/CVE-2026-23940.htmlnvd
osv.dev/vulnerability/EEF-CVE-2026-23940nvd

News mentions

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000