CVE-2026-23940

UNKNOWN 0.0

Denial of Service via Oversized Package Upload

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

15th

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.

CWE	CWE-400
Vendor	hexpm
Product	hexpm
Published	Mar 13, 2026
Last Updated	Apr 6, 2026

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Affected Versions

hexpm / hexpm

0 < 495f01607d3eae4aed7ad09b2f54f31ec7a7df01

hexpm / hex.pm

0 < 2026-03-10

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/hexpm/hexpm/security/advisories/GHSA-jp8w-gxf6-8hcr cna.erlef.org: https://cna.erlef.org/cves/CVE-2026-23940.html osv.dev: https://osv.dev/vulnerability/EEF-CVE-2026-23940 github.com: https://github.com/hexpm/hexpm/commit/495f01607d3eae4aed7ad09b2f54f31ec7a7df01

Credits

Joud Zakharia / zentrust partners GmbH Eric Meadows-Jönsson / Hex.pm